How To Fix USMD1751 - Data model &1, entity type &2: Prefix is irrelevant

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 751

• Message text: Data model &1, entity type &2: Prefix is irrelevant

What causes this issue?

Prefixes for entity types are beneficial only if one of the following
values for the <DS:DE.USMD_KEY_HANDLING>key assignment</> was selected
in data modeling:
<LB>Internal Key Assignment</>
<LB>Key Can Be Changed; Internal Key Assignment Possible</>

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?

Either delete the entry or adjust the settings of the entity type in
data modeling.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.