How To Fix CNV_NCE_BAS161 - NR interval &1: target NR number differs from the source NR number

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 161

• Message text: NR interval &1: target NR number differs from the source NR number

What causes this issue?

You have mapped the corresponding number range interval to the target
number range interval with a different number range number. Since number
range numbers have a certain meaning in business applications (for
example for document types), this mapping is not allowed.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Change the number range number of the target number range interval so
that it is the same as the source one.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS161 - NR interval &1: target NR number differs from the source NR number ?

  The SAP error message CNV_NCE_BAS161 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is a mismatch between the number range (NR) defined in the source system and the number range defined in the target system for a specific object or entity.
  Cause:
  The error arises when:
  
  The number range (NR) assigned to a specific object in the source system does not match the number range defined for that object in the target system.
  There may be a configuration issue where the number ranges are not aligned between the source and target systems.
  The data being migrated may contain values that are not valid in the target system's number range configuration.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Number Range Configuration:
  
  Go to the target system and check the number range configuration for the relevant object. You can do this using transaction codes like SNRO (Number Range Objects) or OBA7 (for number range intervals).
  Ensure that the number range intervals in the target system are correctly defined and that they cover the range of numbers being migrated from the source system.
  
  
  
  Adjust Number Ranges:
  
  If the number ranges in the target system do not match those in the source system, you may need to create or adjust the number ranges in the target system to accommodate the data being migrated.
  You can create new number ranges or modify existing ones to ensure they align with the source data.
  
  
  
  Data Mapping:
  
  Review the mapping of number ranges in the migration tool. Ensure that the mapping is correctly set up to point to the appropriate number ranges in the target system.
  
  
  
  Data Validation:
  
  Validate the data in the source system to ensure that it adheres to the expected formats and values for the target system. This may involve cleaning or transforming the data before migration.
  
  
  
  Retry Migration:
  
  After making the necessary adjustments, retry the migration process to see if the error persists.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP documentation related to data migration and number range management for detailed guidance on configuring number ranges.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Support: If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  By ensuring that the number ranges are correctly configured and aligned between the source and target systems, you should be able to resolve the CNV_NCE_BAS161 error and successfully complete the migration process.