Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 509
Message text: Intern. num. gen. object No. type & is not yet defined as a del. crit.
Internally numbered general object number type is not yet defined as a
deletion criterion.
There is no entry in CNV_20551_OBJ for package No. and for OBJECTTYPE =
J_OBJNR and OBART = <general object number type>.
Warning message.
If you want to use the internally numbered general object number type
as a deletion criterion, you need to define it accordingly via the
maintenance tansaction CNV_20551_OBJ. There, you can also define a
determination logic for this deletion criterion (in the menu for the a.
m. maintenance transaction).
Otherwise, the respective general object number type will appear as a
deletion criterion in step 'Maintain other objects (without pre-defined
determination)' in phase B.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV20551509 typically relates to issues encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that an internal number generation object of a specific type has not been defined as a deletion criterion.
Cause: The error occurs when the system attempts to process an internal number generation object that has not been properly configured or defined in the context of the data migration or conversion process. This can happen due to: Missing Configuration: The internal number generation object type is not set up in the system. Incorrect Mapping: The mapping of the object type to the deletion criteria is not correctly defined. Data Inconsistencies: There may be inconsistencies in the data that prevent the system from recognizing the object type.
Solution: To resolve this error, you can take the following steps: Check Configuration: Go to the relevant configuration settings in your SAP system and
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