3455663 - Error "The requested operation is not available" is raised when opening webgui

Following the implementation of SAML configuration in accordance with KBA 2253359 on the ECP/ERP system, the webgui service, https://myxxxxx.payroll.sapsf.eu/sap/bc/gui/sap/its/webgui, or any other backend application opened in a browser, may fail with the error message "The requested operation is not available."

Another potential symptom is the display of the SF logon screen.

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

SAP SuccessFactors Employee Central Payroll

SAP SuccessFactors Employee Central integration to SAP Business Suite

KBA , LOD-EC-GCP-PY , Payroll Integration EC to Employee Central Payroll , LOD-EC-GCP-PY-MAS , Employee Data Maintenance via Mashups , LOD-EC-GCP-PY-PST , EC Payroll Pay Statement , LOD-EC-GCP-PY-EDR , Employee Data Replication , LOD-EC-INT-UI , UI Integration with ERP On Premise , Bug Filed