How To Fix /UI5/MP_CA006 - Entity container &1 for INSERT operation already contains key &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/MP_CA -

• Message number: 006

• Message text: Entity container &1 for INSERT operation already contains key &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/MP_CA006 - Entity container &1 for INSERT operation already contains key &2 ?

  The SAP error message /UI5/MP_CA006 Entity container &1 for INSERT operation already contains key &2 typically occurs in the context of SAP UI5 applications when there is an attempt to insert a new entity into an OData service, but the entity with the specified key already exists in the entity container. This can happen for several reasons, including:
  Cause:
  
  Duplicate Key: The key you are trying to insert already exists in the database or the entity container. This could be due to a previous insert operation that was not committed or due to a race condition where multiple requests are trying to insert the same entity simultaneously.
  Client-Side Caching: If the application is caching data on the client side, it may not be aware of the latest state of the data in the backend, leading to attempts to insert duplicates.
  Incorrect Logic: There may be a logical error in the application code that leads to multiple insert attempts for the same entity.
  
  Solution:
  
  Check for Existing Entity: Before performing the insert operation, check if the entity with the specified key already exists. You can do this by querying the OData service for the entity using the key.
  Handle Duplicates Gracefully: Implement error handling in your application to manage cases where a duplicate key is detected. You can either inform the user or update the existing entity instead of trying to insert a new one.
  Review Application Logic: Ensure that the logic in your application does not lead to multiple insert attempts for the same entity. This may involve reviewing event handlers, promises, or asynchronous operations.
  Clear Client-Side Cache: If applicable, clear or refresh the client-side cache to ensure that the application has the latest data from the backend.
  Use Unique Identifiers: Ensure that the keys used for entities are unique and generated correctly to avoid conflicts.
  
  Related Information:
  
  OData Service Documentation: Review the documentation for the OData service you are using to understand how it handles entity keys and insert operations.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Debugging: Use debugging tools to trace the execution of your application and identify where the duplicate insert is being triggered.
  
  By following these steps, you should be able to resolve the error and prevent it from occurring in the future.