How To Fix ESH_OM_OBJ_MODEL_RP2322 - Reverse/source 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: 322

• Message text: Reverse/source 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 reverse cardinality
or the foreign key definition.
When importing data adjust the source 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_RP2322 - Reverse/source cardinality "&3" does not fit to foreign key definitions ?

  The SAP error message ESH_OM_OBJ_MODEL_RP2322 indicates an issue with the cardinality of a relationship in the object model, specifically related to foreign key definitions. This error typically arises in the context of the SAP Enterprise Search (SAP ESH) or when working with the Object Model in SAP.
  Cause:
  The error message suggests that there is a mismatch between the defined cardinality of a relationship and the foreign key constraints that have been set up in the database. Cardinality refers to the number of instances of one entity that can or must be associated with each instance of another entity. The error message indicates that the reverse or source cardinality defined in the object model does not align with the foreign key definitions in the database schema.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Object Model Definitions:
  
  Review the object model definitions in the SAP system. Ensure that the cardinality settings for the relationships are correctly defined. The cardinality should match the intended relationship between the entities.
  
  
  
  Review Foreign Key Constraints:
  
  Examine the foreign key definitions in the database. Ensure that they are consistent with the cardinality defined in the object model. If the foreign key constraints are too restrictive or not aligned with the object model, you may need to adjust them.
  
  
  
  Adjust Cardinality:
  
  If the cardinality in the object model is incorrect, modify it to match the foreign key definitions. This may involve changing the relationship type (e.g., one-to-many, many-to-one) to ensure consistency.
  
  
  
  Rebuild or Activate the Object Model:
  
  After making changes, you may need to rebuild or activate the object model to apply the changes. This can often be done through the relevant transaction codes in SAP (e.g., using transaction SE11 for data dictionary objects).
  
  
  
  Test the Changes:
  
  After making the necessary adjustments, test the changes to ensure that the error no longer occurs and that the relationships function as expected.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Builder) for checking and modifying object definitions.
  Documentation: Refer to SAP documentation or help resources for detailed information on object model definitions and foreign key constraints.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on resolving similar issues.
  
  If the problem persists after following these steps, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP ESH or database modeling.