Message type: E = Error
Message class:  CNV_NCE_BAS - Number conversion engine: messages 
Message number: 146
Message text: NR interval &1: pattern '&2' has an incorrect length
You have specified a pattern that is shorter or longer than the numbers
of the corresponding number range interval.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Change the pattern so that it has the same number of digits as the
number range interval. If you use the '*' sign in the pattern, the
pattern length must be smaller than the number of digits in the
corresponding number range interval.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_NCE_BAS146 typically occurs during data conversion processes, particularly when using the SAP Data Migration tools or during the execution of a conversion program. This error indicates that there is an issue with the length of a numeric interval that is being processed.
Cause: The error message CNV_NCE_BAS146 NR interval &1: pattern '&2' has an incorrect length suggests that: The numeric interval specified (denoted by &1) does not conform to the expected length or format. The pattern (denoted by &2) that is being used to define the numeric interval is either too short or too long, or it does not match the expected format for the data type being processed.
Solution: To resolve this error, you can take the following steps: Check the Data Format: Review the data that is being processed to ensure that the numeric intervals are defined correctly. Make sure that the length of the numeric values matches the expected length
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