Message type: E = Error
Message class:  CNV20551 - message for package 20551 (company code delete) 
Message number: 186
Message text: All assigned plants for purchasing organization & are to be deleted
All assigned plants of cross-company code purchasing organization &V1&
will be deleted (see table T024W).
Warning.
Decide if purchasing organization &V1& itself can and should be deleted
or not.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV20551186 indicates that there is an issue with the assignment of plants to a purchasing organization. Specifically, it suggests that all assigned plants for the specified purchasing organization are set to be deleted, which can lead to inconsistencies in the system.
Cause: Data Migration or Conversion: This error often occurs during data migration or conversion processes, where the system is trying to delete or modify plant assignments for a purchasing organization.
Configuration Issues: There may be configuration issues in the system where the plants are not properly assigned to the purchasing organization. Master Data Inconsistencies: There could be inconsistencies in the master data related to plants and purchasing organizations.
Solution: Check Plant Assignments: Verify the current assignments of plants to the purchasing organization in the SAP system. You can do this by navigating to the relevant configuration settings in the SAP GUI. Transaction Code: OMZB (for purchasing organization and plant assignment). Restore Deleted Assignments:
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