Message type: E = Error
Message class:  5W - Messages for PD (Particularly Workflow) 
Message number: 192
Message text: Caution: User & is only valid as of &
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The SAP error message 5W192 indicates that a user is only valid from a specific date onward. This typically occurs when a user account has been set up with a validity period, and the current date is before that validity period starts.
Cause: The user account has a validity date set in the system, which restricts the account's use until that date is reached. The user may be trying to log in or perform actions in the system before the specified start date.
Solution: Check User Validity Dates: Go to transaction code SU01 (User Maintenance). Enter the username that is causing the error and click on the "Display" button. Check the "Validity" section to see the "Valid From" date. Adjust Validity Dates: If the user should be active before the specified date, you can change the "Valid From" date to the current date or an earlier date. To do this, you will need the appropriate authorization to modify user accounts. Communicate with
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