How To Fix /IWBEP/CM_V4_RUNTIME125 - More entities were returned than allowed by the given multiplicity

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWBEP/CM_V4_RUNTIME -

• Message number: 125

• Message text: More entities were returned than allowed by the given multiplicity

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWBEP/CM_V4_RUNTIME125 - More entities were returned than allowed by the given multiplicity ?

  The SAP error message /IWBEP/CM_V4_RUNTIME125 indicates that a query in an OData service has returned more entities than are allowed by the specified multiplicity. This typically occurs when the expected number of results for a particular entity set is not met, leading to a mismatch between the expected and actual results.
  Cause:
  
  Multiplicity Constraints: The OData service defines multiplicity constraints (e.g., 0..1, 1..1, 0..n) for entity sets. If a query is expected to return a single entity (1..1) but returns multiple entities, this error will occur.
  Incorrect Query Parameters: The query parameters used in the request may not be specific enough, leading to multiple records being returned when only one is expected.
  Data Model Issues: There may be issues in the underlying data model or relationships that cause unexpected results.
  Service Implementation: The OData service implementation may not correctly handle the logic for filtering or retrieving entities.
  
  Solution:
  
  Review Query Parameters: Ensure that the query parameters used in the request are specific enough to return a single entity. For example, if you are querying by ID, make sure the ID is unique.
  Check OData Service Definition: Review the OData service definition to understand the expected multiplicity for the entity set you are querying. Adjust your query accordingly.
  Debugging: Use debugging tools or logs to trace the execution of the OData service and see how many entities are being returned. This can help identify where the issue lies.
  Modify Service Logic: If the service is expected to return a single entity but is returning multiple, consider modifying the service logic to enforce the expected behavior.
  Data Cleanup: If the issue is due to data inconsistencies (e.g., duplicate records), consider cleaning up the data in the underlying database.
  
  Related Information:
  
  OData Documentation: Familiarize yourself with OData standards and best practices, especially regarding entity relationships and multiplicity.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific OData service or version you are using.
  Community Forums: Engage with SAP community forums or support channels for additional insights or similar experiences from other users.
  
  By addressing the above points, you should be able to resolve the error and ensure that your OData service behaves as expected.