Message type: E = Error
Message class:  /IWXBE/CORE -  
Message number: 057
Message text: Invalid topic '&1'
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The SAP error message /IWXBE/CORE057 Invalid topic '&1' typically occurs in the context of SAP Business Workflow or SAP Business Process Management (BPM) when there is an issue with a specified topic in a workflow or process instance. The error indicates that the system is unable to recognize or find the topic that has been referenced.
Cause: Incorrect Topic Name: The topic name specified in the workflow or process instance may be misspelled or does not exist in the system.
Configuration Issues: The topic may not be properly configured in the SAP system, or it may have been deleted or deactivated. Authorization Issues: The user or process may not have the necessary permissions to access the specified topic. System Updates or Changes: Recent changes or updates to the system may have affected the availability or configuration of the topic.
Solution: Verify Topic Name: Check the spelling and ensure that the topic name referenced in the workflow or
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