Message type: E = Error
Message class:  CNV_20700 - Material number conversion 
Message number: 222
Message text: No structure maintained for Object ID &1 in field SUBOBJSTRU
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The SAP error message CNV_20700222 indicates that there is no structure maintained for a specific Object ID in the field SUBOBJSTRU. This error typically arises during data migration or conversion processes, particularly when using SAP's data migration tools or during the execution of a conversion program.
Cause: Missing Structure Definition: The error suggests that the system is trying to access a structure for a specific Object ID that has not been defined or maintained in the system. Incorrect Configuration: There may be a configuration issue where the Object ID is not correctly linked to its corresponding structure. Data Migration Issues: If you are performing a data migration, it is possible that the mapping of Object IDs to structures was not set up correctly.
Solution: Check Object ID Configuration: Go to the relevant transaction or configuration area where Object IDs are maintained. Verify if the Object ID in question is correctly defined and has an associated structure. Maintain Structure for
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