How To Fix SWF_XMP021 - No definition exists for interface & &

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_XMP - Messages for XML Message Proxies

• Message number: 021

• Message text: No definition exists for interface & &

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_XMP021 - No definition exists for interface & & ?

  The SAP error message SWF_XMP021, which states "No definition exists for interface & &," typically occurs in the context of SAP Workflow. This error indicates that the system is unable to find a definition for a specified interface that is required for the workflow to function properly.
  Cause:
  
  Missing Interface Definition: The most common cause is that the interface specified in the workflow is not defined in the system. This could happen if the interface was deleted or not created at all.
  Incorrect Configuration: There may be a misconfiguration in the workflow settings or the interface name might be misspelled.
  Transport Issues: If the workflow was transported from one system to another (e.g., from development to production), the interface might not have been included in the transport request.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the interface.
  
  Solution:
  
  
  Check Interface Definition:
  
  Go to transaction code SWO1 (Object Type Builder) and check if the interface exists.
  If it does not exist, you may need to create it or restore it from a backup.
  
  
  
  Verify Workflow Configuration:
  
  Open the workflow definition in transaction SWDD (Workflow Builder) and check the interface name for any typos or incorrect references.
  Ensure that the workflow is correctly configured to use the intended interface.
  
  
  
  Transport Check:
  
  If the workflow was transported, ensure that the transport request included the interface definition. You may need to transport the missing interface from the development system.
  
  
  
  Authorization Check:
  
  Ensure that the user executing the workflow has the necessary authorizations to access the interface. You can check this in transaction SU53 after the error occurs.
  
  
  
  Debugging:
  
  If the issue persists, you can debug the workflow to see where it is failing. Use transaction SWI1 to monitor workflow instances and identify the point of failure.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to SWF_XMP021 for any specific patches or updates that may address this issue.
  Documentation: Review SAP documentation on workflow and interface management for best practices and troubleshooting steps.
  Community Forums: Consider searching or posting on SAP Community forums for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the SWF_XMP021 error in your SAP system.