Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 018
Message text: Field definition for &1 for DOKOB=&2 not found
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The SAP error message CNV20551018, which states "Field definition for &1 for DOKOB=&2 not found," typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program. This error indicates that the system is unable to find the field definition for a specific document type (DOKOB) in the context of the data being processed.
Cause: Missing Field Definition: The field definition for the specified field (&1) and document type (DOKOB=&2) is not available in the system. This could be due to: The field not being defined in the relevant data structure. The document type not being correctly configured or not existing in the system. A mismatch between the data being imported and the expected structure in the target system. Incorrect Configuration: The configuration settings for the data migration might not be set up correctly, leading to the system not recognizing the field or document type. Version
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