Message type: E = Error
Message class:  CNV_MBT - PCL message class 
Message number: 129
Message text: ... change was successful
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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The SAP error message CNV_MBT129 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP Migration Tool or similar utilities. The message indicates that a change was successful, but it may also imply that there are underlying issues or warnings that need to be addressed.
Cause: Data Integrity Issues: The data being migrated may have integrity issues, such as missing references or invalid data formats. Configuration Problems: There may be configuration settings in the migration tool that are not correctly set up, leading to warnings or errors. Version Compatibility: The version of the migration tool may not be compatible with the version of the SAP system you are using. Incomplete Migration Steps: Some steps in the migration process may not have been completed, leading to partial success.
Solution: Review Logs: Check the migration logs for detailed information about what was successful and what issues were encountered. This can provide insights into
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