How To Fix SWF_HTTP120 - Interface definition '&1' not available

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_HTTP - Web Services in the Workflow: Server Functions

• Message number: 120

• Message text: Interface definition '&1' not available

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_HTTP120 - Interface definition '&1' not available ?

  The SAP error message "SWF_HTTP120 Interface definition '&1' not available" typically occurs in the context of SAP Workflow or when dealing with HTTP interfaces in SAP systems. This error indicates that the system is unable to find the specified interface definition, which is necessary for the workflow or HTTP communication to function correctly.
  Cause:
  
  Missing Interface Definition: The specified interface definition (denoted by '&1') does not exist in the system. This could be due to it not being created, being deleted, or not being activated.
  Incorrect Configuration: The configuration settings for the workflow or HTTP interface may be incorrect, leading to the system looking for an interface that is not properly defined.
  Transport Issues: If the interface was recently transported from another system, there may have been issues during the transport process that caused the interface not to be available.
  Authorization Issues: The user or process trying to access the interface may not have the necessary authorizations to view or use it.
  
  Solution:
  
  
  Check Interface Definition:
  
  Go to transaction SWF_VISU or SWF_WORK to check if the interface definition exists.
  If it does not exist, you may need to create it or restore it from a transport request.
  
  
  
  Create or Activate Interface:
  
  If the interface is missing, you can create it using transaction SWF_CREATE or similar.
  If it exists but is inactive, activate it.
  
  
  
  Review Configuration:
  
  Check the configuration settings related to the workflow or HTTP interface. Ensure that all necessary parameters are correctly set.
  
  
  
  Transport Check:
  
  If the interface was recently transported, check the transport logs for any errors. You may need to re-transport the interface or manually create it in the target system.
  
  
  
  Authorization Check:
  
  Ensure that the user or process has the necessary authorizations to access the interface. You can check this using transaction SU53 after the error occurs to see if there are any authorization issues.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of your SAP system for any known issues or additional troubleshooting steps.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SWF_WORK, SWF_CREATE, and SWF_VISU for managing workflows and interfaces.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.