Warning. Container contains elements that exceed 255 characters

What causes this issue?

The standard object to be maintained contains container elements that
exceed 255 characters. Elements of this size are not supported. If you
continue to use the standard object in the workflow, this can lead
to the workflow instance being terminated.

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

System Response

Data type used for the element exceeds 250 characters.

How to fix this error?

The affected container elements need to be corrected.

Procedure for System Administrators

If when you use a different data type for the required element there is
no improvement, contact SAP.

Error message extract from SAP system. Copyright SAP SE.