Run phase is not flagged for SSCUI &

What causes this issue?

SSCUI will not be visible in Run phase if it is not flagged in WEBGUI
Registry (/cfg/webgui_details)

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Run phase should be flagged in WEBGUI Registry

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.