How To Fix SWF_HTTP135 - Temporary error when processing callback

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 135

• Message text: Temporary error when processing callback

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 SWF_HTTP135 - Temporary error when processing callback ?

  The SAP error message SWF_HTTP135, which indicates a "Temporary error when processing callback," typically occurs in the context of SAP Workflow or when dealing with HTTP callbacks in SAP systems. This error can arise due to various reasons, including network issues, server unavailability, or misconfigurations in the workflow or HTTP service.
  Causes:
  
  Network Issues: Temporary network problems can prevent the callback from being processed correctly.
  Server Unavailability: The target server that the callback is trying to reach may be down or experiencing issues.
  Timeouts: The callback may be timing out due to long processing times or delays in the target service.
  Configuration Errors: Incorrect configuration in the workflow or HTTP service settings can lead to this error.
  Load Issues: High load on the server can cause temporary failures in processing requests.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the SAP system and the target server. You can use tools like ping or traceroute to diagnose connectivity.
  Verify Server Status: Check if the target server is up and running. If it is down, you may need to wait until it is back online.
  Review Timeout Settings: Look into the timeout settings for the HTTP service and increase them if necessary to accommodate longer processing times.
  Examine Workflow Configuration: Review the workflow configuration to ensure that all settings are correct and that the callback URL is valid.
  Monitor System Load: Check the load on the SAP system and the target server. If either is under heavy load, consider optimizing performance or scaling resources.
  Retry Mechanism: Implement a retry mechanism in your workflow to handle temporary errors gracefully. This can help in cases where the error is indeed temporary.
  Check Logs: Review the application logs and system logs for more detailed error messages that can provide additional context on the failure.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to SWF_HTTP135 for any specific patches or updates that may address known issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Refer to the official SAP documentation for workflows and HTTP services for best practices and configuration guidelines.
  
  If the issue persists after trying the above solutions, it may be beneficial to contact SAP support for further assistance.