Message type: E = Error
Message class:  CNV_PE_TPM - Messages within transport management functions 
Message number: 103
Message text: &1 is not an interface
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_PE_TPM103 typically indicates that there is an issue with the configuration of a specific interface in the SAP system. This error is often encountered during data migration or when using the SAP Conversion Tools, particularly in the context of the SAP S/4HANA migration.
Cause: The error message CNV_PE_TPM103 occurs when the system is unable to recognize a specified object (like a table, field, or interface) as a valid interface. This can happen due to several reasons, including: Incorrect Configuration: The interface may not be properly configured in the system. Missing Interface Definition: The interface you are trying to use may not exist in the system or may not be activated. Typographical Errors: There could be a typo in the name of the interface being referenced. Authorization Issues: The user may not have the necessary authorizations to access the interface. Version Compatibility: The interface may not be compatible with the version of SAP you
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