Missing key relationship in &1

What causes this issue?

The key values on the &V1& tab differ from the key values on the &V2&
tab.

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?

Make sure that the key relationship is consistent on both tabs.
Check whether the key columns contain a typing error or whether the
corresponding key is missing.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.