Message type: E = Error
Message class: IEN -
Message number: 123
Message text: Invalid serial number and material number
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IEN123
- Invalid serial number and material number ?The SAP error message IEN123, which states "Invalid serial number and material number," typically occurs when there is a mismatch or inconsistency between the serial number and the material number in the system. This error can arise in various scenarios, such as during goods movements, inventory management, or when processing sales orders. Causes: Incorrect Serial Number: The serial number entered does not correspond to the material number in the system. Material Not Serialized: The material number may not be set up to use serial numbers in the material master data. Inactive Serial Number: The serial number may have been deactivated or is no longer valid. Data Entry Errors: Typographical errors during data entry can lead to this error.
Configuration Issues: The system configuration for serial number management may not be set up correctly. Solutions: Verify Serial Number and Material Number: Check if the serial number entered is valid for the specified material number. Use transaction codes like IQ03 (Display Serial
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