How To Fix ESH_OM_OBJ_MODEL_RP2323 - Cardinality "&3" does not fit to foreign key definitions

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_RP2 - Object Model Repository (2)

• Message number: 323

• Message text: Cardinality "&3" does not fit to foreign key definitions

What causes this issue?

All key fields of node &v2& of object type &v1& are specified in the
foreign key definition of the composition.
Join operators other than = are currently not supported in search. So
although at least one join operator is not =, only a cardinality
"Exactly one" or "Up to one" makes sense in search.

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?

In the modeler for search and analytics adjust the cardinality or the
foreign key definition.
When importing data adjust the target cardinality or the foreign key
definition.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_RP2323 - Cardinality "&3" does not fit to foreign key definitions ?

  The SAP error message ESH_OM_OBJ_MODEL_RP2323 indicates a problem with the cardinality of a relationship in the context of the Enterprise Search (ESH) Object Model. Specifically, it suggests that the cardinality defined for a certain relationship does not match the foreign key definitions in the underlying database or data model.
  Cause:
  
  Mismatch in Cardinality: The cardinality defined in the object model (e.g., one-to-one, one-to-many, many-to-many) does not align with the foreign key constraints in the database. For example, if the object model defines a one-to-many relationship but the foreign key in the database is set up for a one-to-one relationship, this error will occur.
  Incorrect Configuration: There may be an error in the configuration of the object model or the foreign key definitions, leading to inconsistencies.
  Data Model Changes: If there have been recent changes to the data model or the underlying database schema, these changes may not have been reflected in the object model configuration.
  
  Solution:
  
  Review Object Model Configuration: Check the configuration of the object model in the SAP system. Ensure that the cardinality defined for the relationships matches the foreign key definitions in the database.
  Check Foreign Key Definitions: Review the foreign key constraints in the database to ensure they are correctly defined. Make sure that they align with the expected cardinality in the object model.
  Adjust Cardinality: If necessary, adjust the cardinality in the object model to match the foreign key definitions. This may involve changing the relationship type or modifying the object model configuration.
  Rebuild or Refresh the Object Model: After making changes, it may be necessary to rebuild or refresh the object model to ensure that the changes take effect.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of the software you are using for any additional guidance or known issues.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) to check table definitions and foreign key relationships, or SE80 (Object Navigator) to review the object model.
  Testing: After making changes, perform tests to ensure that the error is resolved and that the object model behaves as expected.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the steps you have taken to resolve it.