How To Fix CNV_PE502 - Undo transfer method &1 is assigned to multiple transfer methods

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 502

• Message text: Undo transfer method &1 is assigned to multiple transfer methods

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE502 - Undo transfer method &1 is assigned to multiple transfer methods ?

  The SAP error message CNV_PE502 indicates that there is a conflict in the assignment of transfer methods in the system. Specifically, it states that the undo transfer method you are trying to use is assigned to multiple transfer methods, which is not allowed.
  Cause:
  This error typically occurs in the context of data migration or conversion processes, particularly when using the SAP Conversion Tools (like the SAP S/4HANA Migration Cockpit). The root cause of the error is that the system has detected that the same undo transfer method is linked to more than one transfer method, leading to ambiguity in the process.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Transfer Methods: Check the configuration of the transfer methods in your system. You can do this by navigating to the relevant configuration area in SAP where transfer methods are defined.
  
  
  Review Assignments: Look for the specific undo transfer method mentioned in the error message. Identify all the transfer methods that are currently assigned to this undo method.
  
  
  Modify Assignments: You will need to ensure that each undo transfer method is uniquely assigned to only one transfer method. This may involve:
  
  Creating a new undo transfer method if necessary.
  Reassigning the transfer methods to different undo methods to eliminate the conflict.
  
  
  
  Test the Changes: After making the necessary adjustments, test the data transfer process again to ensure that the error has been resolved.
  
  
  Consult Documentation: If you are unsure about how to make these changes, refer to the SAP documentation or help resources related to data migration and transfer methods.
  
  
  Seek Support: If the issue persists or if you are unable to resolve it, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to explore the definitions of transfer methods and their assignments.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on handling transfer methods.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, refer to the specific guides and best practices for configuring transfer methods and undo methods.
  
  By following these steps, you should be able to resolve the CNV_PE502 error and continue with your data migration or conversion process.