Please choose a valid mapping value or context field value.

What causes this issue?

You are attempting to display a history of key mapping statuses for
mapping values or values of context fields that are <ZH>not</> allowed.

System Response

Display of key mapping statuses is <ZH>not</> possible.

How to fix this error?

Please choose a valid mapping value or context field value.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.