Message type: E = Error
Message class: MPN01 - MPN Message: Material Master / customizing
Message number: 051
Message text: Manufacturer part number conversion exit is not active
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MPN01051
- Manufacturer part number conversion exit is not active ?The SAP error message MPN01051, which states "Manufacturer part number conversion exit is not active," typically occurs when the system is unable to convert a manufacturer part number (MPN) due to the absence of an active conversion exit for that specific part number format. This can happen in various scenarios, such as during the creation or modification of material master records or when processing purchase orders.
Cause: Inactive Conversion Exit: The conversion exit for the manufacturer part number is not defined or is inactive in the system. Missing Configuration: The necessary configuration for handling manufacturer part numbers may not be set up correctly in the system. Incorrect Data Format: The format of the manufacturer part number being entered does not match the expected format defined in the conversion exit.
Solution: Check Conversion Exits: Go to transaction code SE11 (Data Dictionary) and check the conversion exit for the manufacturer part number. The conversion exit is usually defined in
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