Message type: E = Error
Message class:  CNV_20000 - Messages for fiscal year change 
Message number: 252
Message text: New number range &1 not defined properly for respective CoCod &2
The new number range input on the screen is not defined properly in the
system.
Check the Customizing settings in table NRIV, the follwing checks were
made.
The new number range must be assigned to the company code to which old
number range belongs.
The new number range TOYEAR must be greater than or equal to the TOYEAR
of exhausted old number range number.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_20000252 indicates that there is an issue with the configuration of a new number range in the system. This error typically arises during data migration or when trying to create new entries in a specific company code (CoCod) where the number range has not been defined correctly.
Cause: Number Range Not Defined: The specified number range for the new entries has not been defined in the system for the given company code. Incorrect Configuration: The number range may be incorrectly configured, such as having overlapping ranges or not being assigned to the correct object. Missing Authorization: The user may not have the necessary authorizations to access or modify the number range settings.
Solution: Define the Number Range: Go to the transaction code SNRO (Number Range Objects). Check if the number range object related to the error is defined. If it is not defined, create a new number range for the specified company code. Ensure that the
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