How To Fix /IWFND/CM_DATA_CON_S001 - Data is inconsistent for node: '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DATA_CON_S -

• Message number: 001

• Message text: Data is inconsistent for node: '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_DATA_CON_S001 - Data is inconsistent for node: '&1' ?

  The SAP error message /IWFND/CM_DATA_CON_S001 Data is inconsistent for node: '&1' typically occurs in the context of SAP Gateway and OData services. This error indicates that there is an inconsistency in the data being processed for a specific node in the OData service. Here’s a breakdown of the potential causes, solutions, and related information:
  Causes:
  
  
  Data Model Issues: The data model defined in the OData service may not match the actual data in the backend system. This can happen if there are changes in the data structure or if the metadata is not updated.
  
  
  Inconsistent Data: The data being fetched or manipulated may have inconsistencies, such as missing mandatory fields, incorrect data types, or relationships that are not properly defined.
  
  
  Service Implementation Errors: There may be issues in the implementation of the service, such as incorrect handling of data in the service methods (e.g., GET, POST, PUT, DELETE).
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain data, leading to inconsistencies when the service tries to fetch or manipulate that data.
  
  
  Caching Issues: If there are caching mechanisms in place, stale or outdated data might be causing the inconsistency.
  
  
  Solutions:
  
  
  Check Data Model: Review the data model in the OData service and ensure it aligns with the backend data structure. Update the service metadata if necessary.
  
  
  Validate Data: Check the data in the backend system for inconsistencies. Ensure that all required fields are populated and that the data types match the expected formats.
  
  
  Debug Service Implementation: Use transaction codes like /IWFND/ERROR_LOG to check for detailed error logs. Debug the service implementation to identify where the inconsistency is occurring.
  
  
  Review Authorizations: Ensure that the user has the necessary authorizations to access the data. Check the roles and authorizations assigned to the user.
  
  
  Clear Cache: If caching is being used, clear the cache to ensure that the latest data is being fetched. You can do this using transaction /IWFND/CACHE.
  
  
  Test with Different Users: Sometimes, testing the service with different user credentials can help identify if the issue is related to user authorizations.
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /IWFND/ERROR_LOG: To view error logs related to OData services.
  /IWFND/MAINT_SERVICE: To maintain and activate OData services.
  /IWFND/DEBUG: To debug OData services.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address known issues related to this error message.
  
  
  Documentation: Refer to the SAP Gateway documentation for best practices on service implementation and data handling.
  
  
  By following these steps, you should be able to identify and resolve the inconsistency causing the error message /IWFND/CM_DATA_CON_S001.