How To Fix WES_OUTBOUND012 - Error occurred on sending of a message

SAP Error Message - Details

• Message type: E = Error

• Message class: WES_OUTBOUND - Messages for Outbound Services

• Message number: 012

• Message text: Error occurred on sending of a message

Self-Explanatory Message

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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 WES_OUTBOUND012 - Error occurred on sending of a message ?

  SAP Error Message:
  
  WES_OUTBOUND012: Error occurred on sending of a message
  
  Cause:
  This error typically occurs in the context of SAP's Workflow Event Sender (WES) or related outbound message processing scenarios. The message indicates that an outbound message (such as a workflow event, IDoc, or ALE message) could not be sent successfully from the SAP system to the target system or middleware.
  Common causes include:
  
  Communication issues: Network problems, incorrect RFC destination, or middleware connectivity issues.
  Configuration errors: Incorrect or incomplete configuration of the outbound communication channel, such as wrong partner profiles, ports, or logical systems.
  Authorization problems: The user or system sending the message lacks the necessary authorizations.
  Technical errors: Runtime errors in the sending program or function module, such as missing data, serialization errors, or system dumps.
  Queue or buffer issues: Outbound queues (e.g., tRFC or qRFC) are stuck or have errors.
  Middleware or receiver system issues: The target system is down, unreachable, or rejecting the message.
  
  
  Solution:
  To resolve the WES_OUTBOUND012 error, follow these steps:
  
  
  Check the detailed error log:
  
  Use transaction SM58 (tRFC error queue) to check for any stuck or failed outbound calls.
  Use transaction SMQ1 (Outbound qRFC queue) to check for queued outbound messages.
  Review the application log via SLG1 for detailed error messages related to the outbound message.
  
  
  
  Verify communication settings:
  
  Check the RFC destination used for sending the message (transaction SM59).
  Test the RFC connection to ensure it is working.
  Verify partner profiles and ports in transactions WE20 and WE21 if IDocs or ALE are involved.
  
  
  
  Check authorizations:
  
  Ensure the user or system sending the message has the required authorizations.
  Review authorization objects related to workflow or message sending.
  
  
  
  Review middleware or target system status:
  
  Confirm that the receiving system or middleware is up and reachable.
  Check for any errors or rejections on the receiver side.
  
  
  
  Reprocess or resend the message:
  
  If the message is stuck in a queue, try to reprocess it via SM58 or SMQ1.
  If necessary, manually resend the message or trigger the sending program again.
  
  
  
  Check for SAP Notes and patches:
  
  Search the SAP Support Portal for notes related to WES_OUTBOUND012 or the specific scenario.
  Apply any relevant patches or corrections.
  
  
  
  
  Related Information:
  
  
  Transactions:
  
  SM58 – Monitor and reprocess tRFC errors.
  SMQ1 – Monitor outbound qRFC queues.
  SM59 – RFC destination configuration.
  WE20 – Partner profiles (for IDoc/ALE).
  WE21 – Ports (for IDoc/ALE).
  SLG1 – Application log.
  
  
  
  Common SAP components involved:
  
  Workflow Event Sender (WES)
  ALE/IDoc processing
  RFC communication
  Middleware interfaces (e.g., PI/PO, CPI)
  
  
  
  SAP Notes:
  
  Check SAP Notes related to outbound message errors or WES errors for your SAP version.
  
  
  
  
  If you provide more context (e.g., the module, transaction, or scenario where the error occurs), I can help with more specific troubleshooting steps.