Message type: E = Error
Message class:  CNV_NCE_BAS - Number conversion engine: messages 
Message number: 156
Message text: NR interval &1: shifting order &2 is already in use
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The SAP error message CNV_NCE_BAS156 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a conflict with the shifting order of intervals, meaning that the specified interval is already in use by another process or object.
Cause: The error is caused by the following scenarios: Overlapping Intervals: The specified interval (e.g., a number range or a time period) is already assigned to another object or process, leading to a conflict. Data Migration Conflicts: During data migration, if multiple processes attempt to use the same shifting order or interval, it can trigger this error.
Configuration Issues: Incorrect configuration of number ranges or intervals in the system can also lead to this error.
Solution: To resolve the error, you can take the following steps: Check Existing Assignments: Review the existing assignments of the shifting order and intervals in the system. Ensure that the interval you
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