How To Fix USMD1049 - Modèle données &1, type entité &2, relation &3: cardinalité non autorisée

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 049

• Message text: Modèle données &1, type entité &2, relation &3: cardinalité non autorisée

Quelle est la cause de ce problème?

Le système émet un message d'erreur et ne vous permettra pas de poursuivre cette transaction tant que l'erreur n'est pas résolue.

To use cardinalities in relationships, the following conditions must be
met:
For relationships of the type <LS>Referencing</>, only the cardinalities
<LS>1:N</> and <LS>0:N</> are permitted.
For relationships of the type <LS>Qualifying and Foreign Key
Relationship</>, only the cardinality <LS>1:N</> is permitted.
For relationships of the type <LS>Leading</>, only the cardinalities
<LS>1:N</> and <LS>1:1</> are permitted. The following also applies to
the cardinality <LS>1:1</>:
The to-entity type must have either the <DS:DE.USMD_USAGE_TYPE>storage
and use type</> <LS>1</> without an assigned data element, or <LS>4</>.
The to-entity type may not appear in any other relationship of the type
<LS>Leading</> or <LS>Qualifying</> as a to-entity type.
At least one of the conditions has not been fulfilled.
ELSE
To use cardinalities in relationships, the following conditions must be
met:
For relationships of the type <LS>Referencing</>, only the cardinalities
<LS>1:N</> and <LS>0:N</> are permitted.
For relationships of the type <LS>Qualifying and Foreign Key
Relationship</>, only the cardinality <LS>1:N</> is permitted.
For relationships of the type <LS>Leading</>, only the cardinalities
<LS>1:N</> and <LS>1:1</> are permitted. The following also applies to
the cardinality <LS>1:1</>:
The to-entity type must have either the <DS:DE.USMD_USAGE_TYPE>storage
and use type</> <LS>1</> without an assigned data element, or <LS>4</>.
The to-entity type may not appear in any other relationship of the type
<LS>Leading</> or <LS>Qualifying</> as a to-entity type.
At least one of the conditions has not been fulfilled.
ELSE
<LS>1:N</> is the only cardinality allowed for the relationship types
<LS>Leading </>and <LS>Qualifying</>.

Réponse du système

The data model cannot be saved or activated.

Comment corriger cette erreur?

Enter a different relationship type or a different cardinality.
ELSE
Enter a different relationship type or a different cardinality.
ELSE
Specify a different relationship type or define <LS>1:N</> as the
cardinality.

Procédure pour les administrateurs système

Extrait du message d'erreur du système SAP. Copyright SAP SE.