Mod./ent.&1, node ent.&2, hy.attr.fr.ref.&3: Invalid reference entity
Message type: E = Error
Message class: USMD1 - Datenmodel
Message number: 504
Message text: Mod./ent.&1, node ent.&2, hy.attr.fr.ref.&3: Invalid reference entity
What causes this issue?
Entity types without their own data elements cannot be used for the
<LS>Hierarchy Attribute from Reference</>.
System Response
The data model will not be saved or activated.
How to fix this error?
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Procedure for System Administrators
Error message extract from SAP system. Copyright SAP SE.
Related Error Messages
USMD1503 Mod./ent.&1, node ent.&2, hy.attr.fr.ref.&3: Data elem. &4 does not exist
USMD1501 Mod./ent.&1, node ent.&2, hier.attr.fr.ref.&3: No data element allowed
USMD1506 Mod./ent.&1, node ent.&2, hy.attr.fr.ref.&3: Refer.ent. &4 does not exist
USMD1507 Mod./ent.&1, node ent.&2, hy.attr.fr.ref.&3: Data element &4 is invalid
