2954188 - Failing to login to SuccessFactors instance through SAP IAS (Identity Authentication)

• When running the upgrade Activate Cloud Platform Identity Authentication's test, you fail to authenticate and validate the test;
• You are seeing this error on the SSO logs "[local user authentication fail for user *******]" even though the Login Name in IAS matches the Username in SF exactly.
• After migration to SAP Cloud Platform Identity Authentication (Upgrade referred on this KBA 2791410), you are facing login issues as the ones below:
• Login is on a loop redirecting from SAP SuccessFactors domain to IAS domain continuously without login in;
• When accessing the Error message "Identity Provider could not process the authentication request received", see below screenshot;

• Any other login issues like Missing Credentials page or Invalid Login page;

• SAP SuccessFactors HXM Suite
• Identity Authentication

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