Message type: E = Error
Message class:  RELMJL - Messages for Joint Liability in LUM 
Message number: 012
Message text: &1/&2: section number not entered
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The SAP error message RELMJL012 indicates that a section number has not been entered in a specific context, typically related to the management of real estate or lease management within the SAP system. This error often arises when trying to process transactions that require a section number, such as creating or modifying lease agreements or real estate objects.
Cause: The primary cause of this error is that the required field for the section number is either left blank or not properly filled in during the transaction. This can happen due to: User Input Error: The user may have overlooked entering the section number.
Configuration Issues: The system may not be configured correctly to handle section numbers for the specific transaction. Data Migration Issues: If data was migrated from another system, section numbers may not have been transferred correctly.
Solution: To resolve the error, you can take the following steps: Check Input Fields: Ensure that the section number is
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