Key fields must be identical to key fields in transactional CDS view.

What causes this issue?

The key fields in the consumption CDS view must be identical to the key
fields in the transactional CDS view.
All key fields that are defined in the transactional CDS view must be
used in the consumption CDS view as well.
Additional key fields in the consumption CDS view are not allowed.

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?

Enter the same key fields in the consumption CDS view as defined in the
transactional CDS view.
Renaming of the key fields in the consumption CDS view using aliases is
allowed.

Procedure for System Administrators

Contact the corresponding developer of the CDS view to correct the
error.

Error message extract from SAP system. Copyright SAP SE.