How To Fix WGDS_SUBSCRIPTION022 - XI subscription failed for '&'

SAP Error Message - Details

• Message type: E = Error

• Message class: WGDS_SUBSCRIPTION - Global data synchronisation

• Message number: 022

• Message text: XI subscription failed for '&'

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 WGDS_SUBSCRIPTION022 - XI subscription failed for '&' ?

  The SAP error message WGDS_SUBSCRIPTION022 indicates that there was a failure in the XI (Exchange Infrastructure) subscription process for a specific object, denoted by the placeholder &. This error typically occurs in the context of SAP Process Integration (PI) or SAP Process Orchestration (PO) when there is an issue with the subscription to a message or event.
  Causes
  
  
  Configuration Issues: The subscription might not be correctly configured in the Integration Directory. This could include incorrect routing rules or missing configurations for the sender or receiver systems.
  
  
  Message Format Issues: The message being sent may not conform to the expected format or schema, leading to processing failures.
  
  
  Network Issues: There could be network connectivity problems between the systems involved in the subscription.
  
  
  Authorization Issues: The user or service account executing the subscription may not have the necessary permissions to access the required resources.
  
  
  System Performance: High load on the system or resource constraints could lead to timeouts or failures in processing subscriptions.
  
  
  Transport Errors: Issues with the transport layer, such as problems with the message broker or middleware, can also cause subscription failures.
  
  
  Solutions
  
  
  Check Configuration: Review the configuration in the Integration Directory to ensure that all routing and communication settings are correct. Verify that the sender and receiver agreements are properly set up.
  
  
  Validate Message Format: Ensure that the message being sent adheres to the expected schema. You can use tools like the SAP PI/PO message monitoring to inspect the message payload.
  
  
  Network Diagnostics: Check the network connectivity between the involved systems. Use tools like ping or traceroute to diagnose any connectivity issues.
  
  
  Review Authorizations: Ensure that the user or service account has the necessary authorizations to perform the subscription. Check roles and permissions in the SAP system.
  
  
  Monitor System Performance: Use SAP monitoring tools to check for system performance issues. Look for any bottlenecks or resource constraints that could be affecting processing.
  
  
  Check Logs: Review the application logs and error logs in the SAP system for more detailed error messages that can provide insights into the cause of the failure.
  
  
  Retry Mechanism: If the error is transient, implementing a retry mechanism may help in cases where the failure is due to temporary issues.
  
  
  Related Information
  
  SAP Notes: Check SAP Notes related to the specific error message for any known issues or patches that may address the problem.
  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 Process Integration/Orchestration for best practices in configuring subscriptions and handling errors.
  
  By following these steps, you should be able to diagnose and resolve the WGDS_SUBSCRIPTION022 error effectively.