Only a single table exists

What causes this issue?

No join is defined. Only one table exists.

System Response

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

How to fix this error?

Insert another table ( <957> <EX><ZH> Insert Table </></>).
and define the conditions of the link.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.