First define a table

What causes this issue?

No table has been defined for the field to which you requestede an F4
help.

System Response

The action is not possible.

How to fix this error?

First enter a table from the base tables of the view.

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.