How To Fix /IWFND/CM_DM020 - Failed to update device manager data on table '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DM -

• Message number: 020

• Message text: Failed to update device manager data on table '&1'

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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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWFND/CM_DM020 - Failed to update device manager data on table '&1' ?

  The SAP error message /IWFND/CM_DM020 Failed to update device manager data on table '&1' typically occurs in the context of the SAP Gateway and Device Management. This error indicates that there was a failure in updating the device manager data in a specific table, which is represented by &1 in the error message.
  Possible Causes:
  
  Database Locking Issues: The table may be locked by another transaction, preventing the update from being completed.
  Authorization Issues: The user executing the operation may not have the necessary authorizations to update the specified table.
  Data Integrity Issues: There may be constraints or triggers on the table that are preventing the update due to data integrity violations.
  Configuration Issues: Incorrect configuration settings in the SAP Gateway or Device Management could lead to this error.
  Technical Issues: There could be underlying technical issues such as database connectivity problems or issues with the SAP Gateway service itself.
  
  Solutions:
  
  Check for Locks: Use transaction codes like SM12 to check for any locks on the table. If there are locks, you may need to wait for them to be released or resolve the locking issue.
  Review Authorizations: Ensure that the user has the necessary authorizations to perform updates on the specified table. You can check this using transaction SU53 after the error occurs.
  Check Data Integrity: Review the data being updated to ensure it complies with any constraints or rules defined in the database schema. Look for any triggers or constraints that might be causing the failure.
  Configuration Review: Verify the configuration settings for the SAP Gateway and Device Management. Ensure that all necessary services are activated and configured correctly.
  Check Logs: Review the application logs (transaction SLG1) for more detailed error messages that can provide additional context about the failure.
  Restart Services: If the issue persists, consider restarting the SAP Gateway service or the entire SAP system, as this can sometimes resolve transient issues.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error message or provide patches or updates.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), SLG1 (Application Log), and SM37 (Job Monitoring) to gather more information about the error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  SAP Documentation: Refer to the official SAP documentation for the SAP Gateway and Device Management for more detailed information on configuration and troubleshooting.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or open a support ticket with SAP for further assistance.