How To Fix ESH_OM_OBJ_MODEL_RP2701 - 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: 701

• Message text: Reverse/source 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 composition
Thus maybe the reverse/source 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 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_RP2701 - Reverse/source cardinality "&3" does not fit to foreign key definitions ?

  The SAP error message ESH_OM_OBJ_MODEL_RP2701 indicates an issue related to the cardinality of relationships in the object model, specifically in the context of foreign key definitions. This error typically arises in the context of SAP's Enterprise Search or Object Model configurations, where the relationships between different entities (or objects) are defined.
  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. Cardinality refers to the number of instances of one entity that can or must be associated with instances of another entity. The error message indicates that the reverse or source cardinality defined for a relationship does not align with the foreign key definitions in the database schema.
  Possible Causes:
  
  Incorrect Cardinality Definition: The cardinality defined in the object model may not match the expected cardinality based on the foreign key constraints.
  Model Configuration Issues: There may be inconsistencies in the configuration of the object model, such as missing or incorrectly defined relationships.
  Database Schema Changes: If there have been recent changes to the database schema (e.g., adding or modifying foreign keys), the object model may not have been updated accordingly.
  Data Inconsistencies: Existing data may not conform to the expected relationships defined in the object model.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Cardinality Definitions: Check the cardinality settings in the object model configuration. Ensure that they match the foreign key definitions in the database schema.
  
  
  Update Object Model: If there are discrepancies, update the object model to reflect the correct cardinality. This may involve modifying the relationships or cardinality settings in the SAP system.
  
  
  Check Foreign Key Constraints: Review the foreign key constraints in the database to ensure they are correctly defined and that they align with the intended relationships in the object model.
  
  
  Rebuild or Refresh the Model: If changes have been made to the database schema or object model, consider rebuilding or refreshing the object model to ensure that all definitions are up to date.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of the software you are using for any known issues or additional guidance.
  
  
  Testing: After making changes, test the object model to ensure that the error no longer occurs and that the relationships function as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with transaction codes related to object model configuration, such as ESM_ADMIN or ESM_CONFIG, which may help in managing and configuring the object model.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the ESH_OM_OBJ_MODEL_RP2701 error in your SAP system.