Message type: E = Error
Message class:  CNV_DMC_SIN - Messages for s-innovations migration 
Message number: 222
Message text: Number range indicator can not be found in the table NRIV
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The SAP error message CNV_DMC_SIN222 indicates that a number range indicator cannot be found in the table NRIV. This error typically occurs during data migration or conversion processes, particularly when using the SAP Data Migration Cockpit or similar tools.
Cause: Missing Number Range Object: The number range object that is being referenced does not exist in the system or has not been properly defined. Incorrect Configuration: The configuration for the number range may be incorrect or incomplete, leading to the system being unable to locate the required number range indicator. Transport Issues: If the number range configuration was transported from another system, it may not have been transported correctly or completely. Custom Development: If there are custom developments that rely on specific number ranges, and those ranges are not defined in NRIV, this error can occur.
Solution: Check Number Range Configuration: Go to transaction SNRO (Number Range Objects) and verify that the number range object you are trying
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