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Error message reference

The table below shows the code returned when an error occurs. You can check the explanations and suggested actions for each error code in the Description column.

Error Code Description

Create_forex_trade

Business

FOREX_MERCHANT_NOT_SUPPORT_THIS_CURRENCY The currency is not supported. Check the agreement with Alipay.
ILLEGAL_SECURITY_PROFILE The matching private key configuration is not found. Ensure your public key is uploaded before calling APIs.
REPEAT_OUT_TRADE_NO The out_trade_no parameter is duplicated. Ensure out_trade_no is unique.
ILLEGAL_CURRENCY The currency parameter is incorrect. Check the currency parameter.
ILLEGAL_TIMEOUT_RULE The timeout_rule parameter is incorrect. Ensure that the value of timeout_rule parameter is defined in the specification. Contact Alipay Technical Support if needed.
SYSTEM_EXCEPTION Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.

Access

ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

System

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
SESSION_TIMEOUT Session timeout. Try again later.
ILLEGAL_TARGET_SERVICE The target service is incorrect. Check the target service.
ILLEGAL_ACCESS_SWITCH_SYSTEM You are not allowed to access the system of this type. Contact Alipay Technical Support if needed.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.

Create_forex_trade_wap

Business

FOREX_MERCHANT_NOT_SUPPORT_THIS_CURRENCY The currency is not supported. Check the agreement with Alipay.
ILLEGAL_SECURITY_PROFILE The matching private key configuration is not found. Ensure your public key is uploaded before calling APIs.
REPEAT_OUT_TRADE_NO The out_trade_no parameter is duplicated. Ensure out_trade_no is unique.
ILLEGAL_CURRENCY The currency parameter is incorrect. Check the currency parameter.
ILLEGAL_TIMEOUT_RULE The timeout_rule parameter is incorrect. Ensure that the value of timeout_rule parameter is defined in the specification. Contact Alipay Technical Support if needed.
SYSTEM_EXCEPTION Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.

Access

ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

System

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
SESSION_TIMEOUT Session timeout. Try again later.
ILLEGAL_TARGET_SERVICE The target service is incorrect. Check the target service.
ILLEGAL_ACCESS_SWITCH_SYSTEM You are not allowed to access the system of this type. Contact Alipay Technical Support if needed.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.

mobile.securitypay.pay

Codes Returned to Client End

9000 Successful transaction. No necessary actions.
8000 Under processing or unknown payment result. Check the transaction status in sellers' orders list.
4000 The transaction failed.
6001 The transaction is canceled.
6002 Network connection error. Ensure the network working properly.
6004 Unknown payment result (Usually caused by network issue, causing Alipay client cannot receive response from Alipay server side). Check the transaction status in sellers' orders list.

Forex_refund

Business

REFUNDMENT_VALID_DATE_EXCEED Can not refund after the specified refund timeframe. No necessary actions.
SYSTEM_EXCEPTION Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
REPEATED_REFUNDMENT_REQUEST Duplicated refund request. Please do not refund repeatedly.
RETURN_AMOUNT_EXCEED The refund amount exceeds the payment amount. Modify and try again.
CURRENCY_NOT_SAME Different currency from the payment currency. Check the refund currency.
PURCHASE_TRADE_NOT_EXIST The payment transaction does not exist. Ensure the transaction ID is correct.

Access

SYSTEM_EXCEPTION Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

System

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
SESSION_TIMEOUT Session timeout. Try again later.
ILLEGAL_TARGET_SERVICE The target service is incorrect. Check the target service.
ILLEGAL_ACCESS_SWITCH_SYSTEM You are not allowed to access the system of this type. Contact Alipay Technical Support if needed.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.

Single_Trade_Query

Business

TRADE_NOT_EXIST The transaction does not exist. Ensure the out_trade_no or trade_no is correct.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SECURITY_PROFILE The matching private key configuration is not found. Ensure your public key is uploaded before calling APIs.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_CHARSET The character set is illegal. Check the _input_charset parameter.
ILLEGAL_CLIENT_IP The client IP address is illegal. Check the Client IP address.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
ILLEGAL_DIGEST_TYPE Digest type is illegal. Check the digest type parameter.
ILLEGAL_DIGEST Digest is illegal. Check the digest parameter.
ILLEGAL_FILE_FORMAT The file format is illegal. Check the file format.
ILLEGAL_ENCODING The encoding type is illegal. Check the encoding type.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.
ILLEGAL_REQUEST_REFERER The request is illegal because of security reasons. Check the request.
ILLEGAL_ANTI_PHISHING_KEY The timeframe is illegal because of security reasons. Ensure the timeframe is correct.
ANTI_PHISHING_KEY_TIMEOUT Timeframe timeout because of security reasons. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_EXTER_INVOKE_IP The IP is illegal because of security reasons. Check the IP address.

System

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
SESSION_TIMEOUT Session timeout. Try again later.
ILLEGAL_TARGET_SERVICE The target service is incorrect. Check the target service.
ILLEGAL_ACCESS_SWITCH_SYSTEM You are not allowed to access the system of this type. Contact Alipay Technical Support if needed.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.

Forex_compare_file

Business

Over limit balance amount record Exceed the maximum entries : 100000. Contact Alipay Technical Support if needed.
System exception Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
Merchant ID incorrect The partner ID is incorrect. Please modify and try again.
Finish date not ahead of today The end date is after today. Ensure that the end date is today or before today.
No balance amount data in the period There is no balance amount data in the period. Ensure the period is correct.
Over 10 days to date period Over 10 day limit for the request time span. Ensure the time span is within 10 days.
Finish date ahead of begin date The end date is before the start date. Ensure that the end date is after the start date.
Illegal date period The value of date is illegal. Check the value of the date parameter.
Date format incorrect YYYYMMDD The date format is incorrect. Format: YYYYMMDD
Internet connected exception ,please try later Network exception. Try again later.

Access

SYSTEM_EXCEPTION Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

System

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
SESSION_TIMEOUT Session timeout. Try again later.
ILLEGAL_TARGET_SERVICE The target service is incorrect. Check the target service.
ILLEGAL_ACCESS_SWITCH_SYSTEM You are not allowed to access the system of this type. Contact Alipay Technical Support if needed.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.

Forex_liquidation_file

Business

Over limit balance amount record Exceed the maximum entries : 100000. Contact Alipay Technical Support if needed.
System exception Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
Merchant ID incorrect The partner ID is incorrect. Please modify and try again.
Finish date not ahead of today The end date is after today. Ensure that the end date is today or before today.
No balance amount data in the period There is no balance amount data in the period. Ensure the period is correct.
Over 10 days to date period Over 10 day limit for the request time span. Ensure the time span is within 10 days.
Finish date ahead of begin date The end date is before the start date. Ensure that the end date is after the start date.
Illegal date period The value of date is illegal. Check the value of the date parameter.
Date format incorrect YYYYMMDD The date format is incorrect. Format: YYYYMMDD
Internet connected exception ,please try later Network exception. Try again later.

Access

SYSTEM_EXCEPTION Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

System

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
SESSION_TIMEOUT Session timeout. Try again later.
ILLEGAL_TARGET_SERVICE The target service is incorrect. Check the target service.
ILLEGAL_ACCESS_SWITCH_SYSTEM You are not allowed to access the system of this type. Contact Alipay Technical Support if needed.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.

Forex_rate_file

Business

System exception Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
Merchant ID incorrect The partner ID is incorrect. Please modify and try again.
File empty The content of the file is empty. Check the content.

Access

ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

System

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
SESSION_TIMEOUT Session timeout. Try again later.
ILLEGAL_TARGET_SERVICE The target service is incorrect. Check the target service.
ILLEGAL_ACCESS_SWITCH_SYSTEM You are not allowed to access the system of this type. Contact Alipay Technical Support if needed.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.

Notify_verify

Business

SYSTEM_EXCEPTION Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.

Access

SYSTEM_EXCEPTION Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

System

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
SESSION_TIMEOUT Session timeout. Try again later.
ILLEGAL_TARGET_SERVICE The target service is incorrect. Check the target service.
ILLEGAL_ACCESS_SWITCH_SYSTEM You are not allowed to access the system of this type. Contact Alipay Technical Support if needed.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.

alipay.overseas.secmerchant.online.maintain

Business

MCC_CAN_NOT_MODIFY The MCC passed in is incorrect. Ensure that the passed MCC is original.
REGISTER_COUNTRY_FORBIDDEN Because of anti-money laundering reasons, the country or region in register_country cannot be registered. Contact Alipay Technical Support if needed.
PARAM_ILLEGAL The parameter is illegal. Modify the parameter according to the API document.
SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.

Access

ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SECURITY_PROFILE The matching private key configuration is not found. Ensure your public key is uploaded before calling APIs.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_CHARSET The character set is illegal. Check the _input_charset parameter.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

System

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
SESSION_TIMEOUT Session timeout. Try again later.
ILLEGAL_TARGET_SERVICE The target service is incorrect. Check the target service.
ILLEGAL_ACCESS_SWITCH_SYSTEM You are not allowed to access the system of this type. Contact Alipay Technical Support if needed.
EXTERFACE_IS_CLOSED The interface is closed. Stop calling this interface.

alipay.acquire.overseas.spot.pay

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
INVALID_PARAMETER Parameter error. Check the standard of each request parameter according to the API specification
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
TRADE_BUYER_NOT_MATCH The buyer does not match. Scan the last barcode which is used for the previous payment or refresh the partner_trans_id to generate a new payment. Contact Alipay Technical Support if needed.
TRADE_HAS_CLOSE The transaction is closed. Request a new payment.
TRADE_STATUS_ERROR The corresponding transaction status is not allowed for current operation. Generate a new partner_trans_id request to Alipay. If a same error code returned, switch to other payment method such as cash and credit card.
EXIST_FORBIDDEN_WORD The input context contains forbidden words, according to China law. Check the value of trans_name.
SELLER_NOT_EXIST The value of alipay_seller_id is incorrect. Modify and try again.
BUYER_NOT_EXIST The buyer_identity_code value is incorrect. Merchant may ask user to change other payment methods like cash or credit card
BUYER_ENABLE_STATUS_FORBID The buyer account is disabled because of security reasons. 1) User need to complete the real-name validation accordingly 2) Cannot support Hong Kong and Macau residents 3) Cannot support foreign residents 4) User could contact Alipay CS hotline for help
BUYER_SELLER_EQUAL The input buyer account is equal to seller account. Change the user's Alipay account.
CLIENT_VERSION_NOT_MATCH The client version does not match. Update Alipay wallet to the latest version.
SOUNDWAVE_PARSER_FAIL Incorrect barcode. 1) Ensure users are using the correct Alipay barcode or QR code 2) Check whether the scanner is handled correctly 3) Ensure not to scan the user's barcode repeatedly.
CONTEXT_INCONSISTENT The transaction information is inconsistent by the same out_trade_no. Check the request data.
PRODUCT_AMOUNT_LIMIT_ERROR The transaction amount exceeded the limit. Contact Alipay Technical Support if needed.
BUYER_BALANCE_NOT_ENOUGH Insufficient balance for current operation. Top-up the balance or link a bank card.
TOTAL_FEE_EXCEED The transaction amount exceed the limit. Change to other payment method, such as cash and credit card.
BUYER_PAYMENT_AMOUNT_DAY_LIMIT_ERROR The total payment amount for the buyer exceeded user daily max-amount limit. Change to other payment method such as cash or credit card.
BUYER_PAYMENT_AMOUNT_MONTH_LIMIT_ERROR The total payment amount for the buyer exceeded user monthly max-amount limit. Change to other payment method such as cash or credit card.
ERROR_BUYER_CERTIFY_LEVEL_LIMIT The buyer failed the PBOC’s validation.The user needs to complete the real-name validation.
ERROR_SELLER_CERTIFY_LEVEL_LIMIT The seller failed the PBOC’s validation. Supplement the business license and some other materials.
PAYMENT_REQUEST_HAS_RISK The current transaction contains risks detected by Alipay. Users can contact Alipay Customer Service window for help or change to other payment methods such as cash or credit card.
NO_PAYMENT_INSTRUMENTS_AVAILABLE No available payment tool can be used for the current operation. Try again. Contact Alipay Technical Support if needed.
BUYER_BANKCARD_BALANCE_NOT_ENOUGH Insufficient balance for current operation. Top-up the balance or link a bank card.
PAYMENT_FAIL The transaction failed. Retry the payment with the same partner_trans_id.
MOBILE_PAYMENT_SWITCH_OFF The mobile payment method is off. The buyer needs to access to www.alipay.com then enter [账户管理] - [支付宝钱包设置], and then switch on[支付宝钱包支付].
USER_FACE_PAYMENT_SWITCH_OFF The face to face payment method is off. Swtich off [付款码] at top right corner in the buyer's Alipay wallet, and then switch it on again.
ERROR_BALANCE_PAYMENT_DISABLE The balance payment method is off. The buyer needs to access to www.alipay.com then enter [账户管理] - [付款方式和额度], and then switch on[账户支付功能].
EXCHANGE_AMOUNT_OR_CURRENCY_ERROR The exchange amount or currency is incorrect. Check the amount and the currency parameter.
ILLEGAL_SECURITY_PROFILE The matching private key configuration is not found. Ensure your public key is uploaded before calling APIs.
ILLEGAL_EXTERFACE_FOR_CA_VERIFY The interface is not allowed to use Certificate Verification Service. Contact Alipay Technical Support if needed.
PULL_MOBILE_CASHIER_FAIL Failed to call the mobile cashier. Contact Alipay Technical Support if needed.
BEYOND_PAY_RESTRICTION Exceeded the maximum payment amount. Change to other payment method such as cash or credit card.
NOT_SUPPORT_PAYMENT_INST The Alipay Wallet version is not supported. Contact Alipay Technical Support if needed.
RESTRICTED_MERCHANT_INDUSTRY The payment can not exceed the amount limit in the industry. Check the value of secondary_merchant_industry or contact Alipay Technical Support if needed.
INVALID_RECEIVE_ACCOUNT The seller is not in the payee list. Contact Alipay Technical Support if needed.
FORBIDDEN_MERCHANT_INDUSTRY The transaction type is incorrect. Check the value of secondary_merchant_industry or contact Alipay Technical Support if needed.
ILLEGAL_MERCHANT_INDUSTRY The MCC format is illegal. Ensure that the value of secondary_merchant_industry is defined at MCC list.
CURRENCY_NOT_SUPPORT The currency is not supported. Check the agreement with Alipay.
TRADE_TOTAL_FEE_ERROR The total transaction fee is incorrect. Check the values of amount related parameters.
RESTRICTED_MERCHANT_INDUSTRY The payment can not exceed the amount limit in the industry. Check the value of secondary_merchant_industry or contact Alipay Technical Support if needed.
ACCESS_FORBIDDEN You have no permission to use the product. Check your agreement with Alipay.
STORE_NOT_MATCH The MID/SID is not matched with KYC. Check your agreement with Alipay.

alipay.acquire.create

Business

AE_BARCODE_GENERAL_CODE_FAIL Failed to generate the barcode. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
AE_BARCODE_GENERAL_CODE_FAIL_AND_NOT_RETRY Creating a QR code failed. Contact Alipay Technical Support if needed.
AE_BARCODE_GENERAL_CODE_FAIL_AND_RETRY Creating a QR code failed. Contact Alipay Technical Support if needed.
QRCODE_HAS_BEEN_EXIST The QR code already exists. Try again or Contact Alipay Technical Support if needed.

System

ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SECURITY_PROFILE The matching private key configuration is not found. Ensure your public key is uploaded before calling APIs.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_CHARSET The character set is illegal. Check the _input_charset parameter.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

alipay.acquire.precreate

Business

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
CONTEXT_INCONSISTENT The transaction information is inconsistent by the same out_trade_no. Check the request data.
TRADE_HAS_SUCCESS The transaction is successful. No necessary actions.
TRADE_HAS_CLOSE The transaction has expired. Try again.
TRADE_HAS_FINISHED The transaction has finished. Contact Alipay Technical Support if needed.
REASON_ILLEGAL_STATUS The transaction status is illegal. Contact Alipay Technical Support if needed.
EXIST_FORBIDDEN_WORD The input context contains forbidden words, according to China law. Check the value of trans_name.
ACCESS_FORBIDDEN You have no permission to use the product. Check your agreement with Alipay.
SELLER_NOT_EXIST The value of alipay_seller_id is incorrect. Modify and try again.
SELLER_BEEN_BLOCKED The seller's account has been frozen. Contact Alipay Technical Support if needed.
INVALID_PARAMETER Parameter error. Check the standard of each request parameter according to the API specification
CURRENCY_NOT_SUPPORT The currency is not supported. Check the agreement with Alipay.
RESTRICTED_MERCHANT_INDUSTRY The payment can not exceed the amount limit in the industry. Check the value of secondary_merchant_industry or contact Alipay Technical Support if needed.
PRODUCT_AMOUNT_LIMIT_ERROR The transaction amount exceeded the limit. Contact Alipay Technical Support if needed.
EXCHANGE_AMOUNT_OR_CURRENCY_ERROR The exchange amount or currency is incorrect. Check the amount and the currency parameter.
ILLEGAL_MERCHANT_INDUSTRY The MCC format is illegal. Ensure that the value of secondary_merchant_industry is defined at MCC list.
FORBIDDEN_MERCHANT_INDUSTRY The transaction type is incorrect. Check the value of secondary_merchant_industry or contact Alipay Technical Support if needed.
INVALID_RECEIVE_ACCOUNT The seller is not in the payee list. Contact Alipay Technical Support if needed.

Access

ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
INVALID_PARAMETER Parameter error. Check the standard of each request parameter according to the API specification
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE_FOR_CA_VERIFY The interface is not allowed to use Certificate Verification Service. Contact Alipay Technical Support if needed.
ILLEGAL_CERT_IS_OVERDUE The certificate verification failed. Check the status of your certificate.
ILLEGAL_CA_SIGN The certificate verification failed. Check the status of your certificate.

alipay.acquire.cancel

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
INVALID_PARAMETER Parameter error. Check the standard of each request parameter according to the API specification
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
REASON_TRADE_BEEN_FREEZEN The corresponding transaction has been frozen because of security reasons. Contact Alipay Technical Support if needed.
TRADE_NOT_EXIST The corresponding transaction is not found. 1) Ensure partner_trans_id is correct 2)Contact Alipay Technical Support if needed.
TRADE_STATUS_ERROR The corresponding transaction status is not allowed for current operation. 1) Ensure the transaction status is correct 2)Contact Alipay Technical Support if needed.
BUYER_ERROR The buyer does not exist. Please contact Alipay Technical Support.
BUYER_ENABLE_STATUS_FORBID The buyer account status prohibits the refund. Please contact Alipay Technical Support.
SELLER_ERROR The seller does not exist. Contact Alipay Technical Support if needed.
MERCHANT_BALANCE_NOT_ENOUGH The merchant‘s balance is insufficient for the refund. Try again later after new transactions occurred.
TRADE_CANCEL_TIME_OUT The cancellation request is beyond the opening hours. Call the refund interface instead.
SELLER_BALANCE_NOT_ENOUGH Insufficient balance of seller. Try again after new transactions occurr.
REASON_TRADE_REFUND_FEE_ERR Invalid refund amount. Check the request refund amount or contact Alipay Technical Support if needed.
TRADE_HAS_FINISHED The transaction has finished. Call the refund interface instead.

alipay.acquire.overseas.spot.refund

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
INVALID_PARAMETER Parameter error. Check the standard of each request parameter according to the API specification
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
REASON_TRADE_BEEN_FREEZEN The corresponding transaction has been frozen because of security reasons. Contact Alipay Technical Support if needed.
TRADE_NOT_EXIST The corresponding transaction is not found. 1) Ensure partner_trans_id is correct 2)Contact Alipay Technical Support if needed.
TRADE_STATUS_ERROR The corresponding transaction status is not allowed for current operation. 1) Ensure the transaction status is correct 2)Contact Alipay Technical Support if needed.
REFUND_AMT_RESTRICTION The value of refund_amount or the total refund amount is more than the transaction amount. Check whether the refund amount is correct.
REQUEST_AMOUNT_EXCEED The value of refund_amount or the total refund amount is more than the transaction amount. Check whether the refund amount is correct.
TRADE_HAS_CLOSE The transaction is closed. Check the status of this transaction and the settings of refund time window.
MERCHANT_BALANCE_NOT_ENOUGH The merchant‘s balance is insufficient for the refund. Try again later after new transactions occurred.
INVALID_ROUNDED_AMOUNT The refund with this amount may violate the rule that the calculated amount of both CNY and foreign currency should be fully or not fully refunded at the same time. Take a transaction with 0.07 CNY (0.01 USD) as an example. A refund with 0.06 CNY would not be accepted because this comes to a situation where there is 0.01 CNY (0 USD) left for this transaction. Contact Alipay Technical Support if needed.
REASON_TRADE_REFUND_FEE_ERR Invalid refund amount. Check the request refund amount or contact Alipay Technical Support if needed.

alipay.acquire.overseas.query

SYSTEM_ERROR Alipay system failed to process the request because of temporary internal glitch. Try again later or contact Alipay Technical Support if needed.
ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
INVALID_PARAMETER Parameter error. Check the standard of each request parameter according to the API specification
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
REASON_TRADE_BEEN_FREEZEN The corresponding transaction has been frozen because of security reasons. Contact Alipay Technical Support if needed.
TRADE_NOT_EXIST The corresponding transaction is not found. 1) Ensure partner_trans_id is correct 2)Contact Alipay Technical Support if needed.

alipay.commerce.qrcode.modify

Business

AE_BARCODE_GENERAL_CODE_FAIL_AND_RETRY Modifying a QR code failed. Contact Alipay Technical Support if needed.
AE_BARCODE_GENERAL_CODE_FAIL_AND_NOT_RETRY Modifying a QR code failed. Contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.

System

ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SECURITY_PROFILE The matching private key configuration is not found. Ensure your public key is uploaded before calling APIs.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_CHARSET The character set is illegal. Check the _input_charset parameter.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

alipay.commerce.qrcode.modifyStatus

Business

AE_BARCODE_GENERAL_CODE_FAIL_AND_RETRY Modifying a QR code failed. Contact Alipay Technical Support if needed.
AE_BARCODE_GENERAL_CODE_FAIL_AND_NOT_RETRY Modifying a QR code failed. Contact Alipay Technical Support if needed.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.

System

ILLEGAL_SIGN The signature is illegal. See Digital signature for details.
ILLEGAL_DYN_MD5_KEY The dynamic key information is incorrect. Check the dynamic key information.
ILLEGAL_ENCRYPT The encryption is incorrect. Check the encryption type.
ILLEGAL_ARGUMENT The parameter is incorrect. Check each request parameter according to the API specification, contact Alipay Technical Support if needed.
ILLEGAL_SERVICE The service parameter is incorrect. Ensure that the API is the one you are calling.
ILLEGAL_USER The user ID is incorrect. Check the user ID.
ILLEGAL_PARTNER The partner ID is incorrect. Ensure the value of partner parameter matches the partner value provided by Alipay. Contact Alipay Technical Support if needed.
ILLEGAL_EXTERFACE The interface configuration is incorrect. Ensure that the service parameter has the same value with the one in API specification. Contact Alipay Technical Support if needed.
ILLEGAL_PARTNER_EXTERFACE The service is not activated for this account. Ensure your agreement with Alipay is finalized. Contact Alipay Technical Support if needed.
ILLEGAL_SECURITY_PROFILE The matching private key configuration is not found. Ensure your public key is uploaded before calling APIs.
ILLEGAL_AGENT The Agency ID is incorrect. Check your agency ID or Contact Alipay Technical Support if needed.
ILLEGAL_SIGN_TYPE The sign type is incorrect. Ensure the value of sign_type is MD5, DSA or RSA.
ILLEGAL_CHARSET The character set is illegal. Check the _input_charset parameter.
HAS_NO_PRIVILEGE You have no privilege to access. Contact Alipay Technical Support if needed.
INVALID_CHARACTER_SET The character set is invalid. Ensure the value of _input_charset parameter is correct.

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