How To Fix CNV_PE_POST129 - No undo transfer method assigned to transfer method

CNV_PE_POST129 - Overview

• Message type: E = Error

• Message class: CNV_PE_POST -

• Message number: 129

• Message text: No undo transfer method assigned to transfer method

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

CNV_PE_POST129 - Details

• The SAP error message CNV_PE_POST129 indicates that there is no undo transfer method assigned to a transfer method in the context of a data migration or conversion process. This error typically arises during the execution of a data transfer or conversion program, particularly in scenarios involving the SAP Landscape Transformation (SLT) or other data migration tools.
  
  Cause:
  The error occurs when the system expects an undo transfer method to be defined for a specific transfer method, but it is not found. This can happen due to:
  
  
  Configuration Issues: The transfer method may not have been properly configured in the system.
  Missing Customization: The necessary customization for the transfer method may not have been completed.
  Data Migration Settings: The settings for the data migration process may be incomplete or incorrect.
  
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Transfer Method Configuration:
  
  Go to the relevant configuration settings for the transfer method in the SAP system.
  Ensure that an