How To Fix ESH_OM_OBJ_MODEL_RP2702 - 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: 702

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

What causes this issue?

Not all key fields of node &v2& of object type &v1& are specified in the
foreign key definition of the association or at least one foreign key
definition has the join-operator =.
Thus maybe the cardinality "&v3&" may not make sense.

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 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_RP2702 - Cardinality "&3" does not fit to foreign key definitions ?

  The SAP error message ESH_OM_OBJ_MODEL_RP2702 indicates a problem 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 or SAP HANA environments where object models are defined.
  Cause:
  The error message suggests that there is a mismatch between the expected cardinality of a relationship and the actual cardinality defined in the foreign key constraints. Cardinality refers to the number of instances of one entity that can or must be associated with each instance of another entity. The error could be caused by:
  
  Incorrect Foreign Key Definition: The foreign key constraints defined in the database do not match the expected cardinality in the object model.
  Model Configuration Issues: The object model may have been incorrectly configured, leading to inconsistencies in how relationships are defined.
  Data Model Changes: Changes made to the data model (like adding or modifying relationships) without updating the corresponding object model can lead to this error.
  Inconsistent Data: Existing data may not conform to the expected relationships defined in the object model.
  
  Solution:
  To resolve the ESH_OM_OBJ_MODEL_RP2702 error, you can take the following steps:
  
  
  Review Foreign Key Definitions: Check the foreign key definitions in the database to ensure they match the expected cardinality in the object model. Make adjustments as necessary.
  
  
  Check Object Model Configuration: Review the configuration of the object model in the SAP system. Ensure that the relationships are defined correctly and that the cardinality aligns with the foreign key definitions.
  
  
  Update Object Model: If there have been changes to the underlying data model, update the object model accordingly. This may involve redefining relationships or adjusting cardinality settings.
  
  
  Data Consistency Check: Perform a data consistency check to ensure that the existing data adheres to the defined relationships. If inconsistencies are found, you may need to clean or adjust the data.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of SAP you are using. There may be specific guidelines or patches available that address this issue.
  
  
  Testing: After making changes, test the object model to ensure that the error is resolved and that the relationships function as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the SAP documentation for Enterprise Search or the specific module you are working with to understand the expected configurations and relationships.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.