Message type: E = Error
Message class:  FKK_ID_XX_ODN - ODN message 
Message number: 127
Message text: No. of number range intervals (&1) < no. of doc.classes (&2) for year &3
The number range object used is valid for a specific year.
Document classes exist that are not assigned to a number range interval
for that year.
This can occur in the following cases:
You have created document classes that are not to be used for official
document numbering for that year.
You have not assigned each document class to a number range interval
even if the document class requires an official document number for that
year.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
The system cannot determine whether a Customizing error has occurred,
and it proceeds with official document number processing. The system
does not assign an official document number to a document if it belongs
to a document class that is not assigned to a number range interval.
Check if document classes that are not assigned to a number range
interval require an official document number.
Check if the year-dependent number range object contains all number
ranges that you need for the relevant year.
Assign each document class that requires an official document number to
a number range interval that is valid for the relevant year.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FKK_ID_XX_ODN127 indicates that there is a mismatch between the number of number range intervals defined for a specific year and the number of document classes that are configured to use those intervals. This typically occurs in the context of contract accounts receivable and payable (FI-CA) when the system is trying to process documents but finds that the configuration is insufficient.
Cause: Insufficient Number Range Intervals: The number of number range intervals defined for the specified year is less than the number of document classes that require those intervals.
Configuration Issues: There may be a misconfiguration in the number range settings for the document classes in the system. Yearly Configuration: The error may arise if the number range intervals have not been properly set up for the new fiscal year.
Solution: To resolve this error, you can follow these steps: Check Number Range Intervals: Go to the transaction code SNRO (Number Range Objects). Find the relevant
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