/IWFND/CM_IFL044 - Relation '&1' not found in the metadata

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_IFL -

• Message number: 044

• Message text: Relation '&1' not found in the metadata

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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AnswerBot

• What is the cause and solution for SAP error message /IWFND/CM_IFL044 - Relation '&1' not found in the metadata ?

  The SAP error message /IWFND/CM_IFL044 Relation '&1' not found in the metadata typically occurs in the context of SAP Gateway and OData services. This error indicates that the system is unable to find a specified relation in the metadata of the OData service. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Missing Relation in Metadata: The specified relation (denoted by &1) does not exist in the metadata of the OData service. This could be due to a misconfiguration or an incomplete definition of the data model.
  Service Activation Issues: The OData service may not be properly activated or may not have been updated after changes were made to the underlying data model.
  Model Changes: If there have been recent changes to the underlying data model (like adding or removing associations), the metadata may not reflect these changes.
  Caching Issues: Sometimes, the metadata cache may not be updated, leading to discrepancies between the actual model and what is cached.
  
  Solutions:
  
  Check Metadata: Use the transaction /IWFND/MAINT_SERVICE to check the metadata of the OData service. Ensure that the relation specified in the error message is defined correctly.
  Activate/Reactivate the Service: Go to the transaction /IWFND/MAINT_SERVICE, find the relevant service, and ensure it is activated. If it is already activated, try deactivating and then reactivating it.
  Regenerate Metadata: If there have been changes to the data model, regenerate the metadata. You can do this by using the transaction /IWFND/MAINT_SERVICE and selecting the option to regenerate the metadata.
  Clear Cache: Clear the OData service cache. You can do this by using the transaction /IWFND/CACHE and selecting the option to clear the cache.
  Check for Errors in the Data Model: Review the data model in the backend (e.g., using transaction SE11 for database tables or SE80 for data models) to ensure that all associations and relations are correctly defined.
  Debugging: If the issue persists, consider debugging the OData service to trace where the error is occurring and gather more context about the missing relation.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  OData Service Documentation: Review the documentation for the specific OData service you are working with to understand its structure and relationships.
  Community Forums: Consider searching or posting on SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the error message /IWFND/CM_IFL044 Relation '&1' not found in the metadata.