iDiagnose is a function provided by Alipay sandbox to help you to pinpoint errors when certain error codes are returned in the integration process. With iDiagnose, you can improve integration efficiency and quality with lower integration cost and better user experience.
The supported error codes by now:
Before using iDiagnose, you must have an Alipay merchant account. See Creating an Alipay merchant account for details.
When an error code is returned during your integration, follow the steps below to pinpoint the error:
One or more required parameters are missing in the request URL.