How To Fix /IWFND/CM_CNP029 - User subscription step has failed (object: '&1', consumer: '&2')

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_CNP -

• Message number: 029

• Message text: User subscription step has failed (object: '&1', consumer: '&2')

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_CNP029 - User subscription step has failed (object: '&1', consumer: '&2') ?

  The SAP error message /IWFND/CM_CNP029 User subscription step has failed (object: '&1', consumer: '&2') typically occurs in the context of SAP Gateway and OData services, particularly when dealing with user subscriptions in the context of the SAP Cloud Platform or SAP Fiori applications.
  Cause:
  This error message indicates that there was a failure during the user subscription process for a specific object and consumer. The causes can vary, but common reasons include:
  
  Authorization Issues: The user may not have the necessary authorizations to perform the subscription.
  Service Configuration: The OData service may not be properly configured or activated.
  Backend Issues: There may be issues in the backend system that prevent the subscription from being processed.
  Data Integrity Issues: There may be issues with the data being processed, such as missing or invalid entries.
  Network Issues: Connectivity problems between the SAP Gateway and the backend system can also lead to this error.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary roles and authorizations to perform the subscription. You can check this in the user management section of your SAP system.
  
  
  
  Verify Service Activation:
  
  Go to the SAP Gateway Service Builder (transaction code /IWFND/MAINT_SERVICE) and ensure that the relevant OData service is activated and properly configured.
  
  
  
  Review Backend Logs:
  
  Check the backend system logs for any errors or warnings that might provide more context on why the subscription failed. You can use transaction codes like SLG1 (Application Log) to find relevant logs.
  
  
  
  Check Data Integrity:
  
  Validate the data being used for the subscription. Ensure that all required fields are populated and that the data adheres to the expected formats.
  
  
  
  Network Connectivity:
  
  Ensure that there are no network issues between the SAP Gateway and the backend system. You can test connectivity using tools like ping or telnet.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the OData service to trace where the failure occurs. This may require development access and knowledge of the underlying ABAP code.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific OData service or the error message for any known issues or additional troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Support: If the issue cannot be resolved through the above steps, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution.