登录SAP网关系统(Gateway system), use tcode /IWFND/ERROR_LOG, try to find the corresponding error entry by comparing column “Date”, “Time” and “User” with the one you wrote down in step1. If you have successfully found one, please make a screenshot and highlight it and then send the incident back to me. I will continue the analysis based on the error log you found.
Alternatively, you can use tcode /IWFND/TRACES in gateway system.
Create a new entry for the user which you perform the test in Iphone, set error log level to F - Full and enable Payload Trace.
Then perform the opportunity creation in Iphone. Once done, check the Payload Trace tab. Check if there are any entry with status error ( red light ).
Double click on a given entry and you can get the detail of request and response.
If nothing found in gateway system, you can use tcode /IWBEP/TRACES in CRM backend system, this time you switch on log with Error log Level = full and enable Performance Trace:
And then you perform the opportunity creation in IPhone again, and once done go back to this tcode to try to find if there are any entry with error status.