Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 091
Message text: Controlling area & will be split up (partially deleted)
Some, but not all company codes for controlling area &V1& will be
deleted.
This means that you are in fact doing a controlling area split.
Some cost centers, profit centers and other CO objects may become
obsolete!
The relevant controlling area information is stored in table
CNV_20551_KOKRS1. This information is needed to optimize the performance
of the programs for finding and processing CO document numbers.
You may have to do some manual postprocessing with regard to these
partially deleted controlling areas.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV20551091 indicates that a controlling area is being split up or partially deleted during a data migration or conversion process. This error typically arises in the context of using SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
Cause: Data Inconsistency: The controlling area may have inconsistencies in the data that prevent it from being processed correctly.
Configuration Issues: There may be configuration settings in the controlling area that are not compatible with the migration process. Dependencies: There could be dependencies on other objects (like cost centers, internal orders, etc.) that are causing the controlling area to be partially deleted. Migration Settings: Incorrect settings or parameters in the migration tool can lead to this error.
Solution: Check Data Consistency: Review the data in the controlling area for any inconsistencies or errors. Use transaction codes like KAH3 (Display Controlling Area) to check the configuration. Review Configuration: Ensure that the
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