SAP Message UCUM016 - The user layout is not compatible with the current parameters

Diagnosis
The system is attempting to use an existing user layout for the display.However, the existing characteristic values deviate from the parametersthat are currently in place.
This message is displayed especially when changes were made to the taskhierarchy and an obsolete monitor layout still exists.

System Response
The default layout will be used instead of the existing user layout.

Procedure
If applicable, save the layout again.