Message type: E = Error
Message class:  CNV20201 -  
Message number: 021
Message text: CNV_20201_NRIV_O and NRIV inconsistent: Subobj &1, NoRg &1, To-year &3
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The SAP error message CNV20201021, specifically related to CNV_20201_NRIV_O and NRIV inconsistency, typically arises during data migration or conversion processes, particularly when dealing with the NRIV (Number Range Interval) objects in SAP. This error indicates that there is an inconsistency in the number range intervals for a specific sub-object and number range.
Cause: Inconsistent Number Ranges: The error suggests that the number range intervals for the specified sub-object are not consistent. This could be due to: Missing or incorrectly defined number ranges. Overlapping number ranges. Incorrect configuration in the number range settings. Data migration issues where the number ranges were not properly set up or migrated. Data Migration Issues: If you are performing a data migration, the source data may have inconsistencies that are not compatible with the target system's number range settings.
Solution: Check Number Range Configuration: Go to the transaction code SNRO (Number Range Objects) and check the configuration for the specific number range object related to the
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