How To Fix CNV_NCE_BAS232 - NR interval &1: pattern results in duplicates

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 232

• Message text: NR interval &1: pattern results in duplicates

What causes this issue?

You have specified a pattern that maps two different numbers from the
source interval to the same number in the target interval.

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 pattern so that all numbers from the source interval have
distinct target numbers.

Procedure for System Administrators

It is important that you consider the number level of the corresponding
number range interval when you specify a pattern.
<ZH>Example</>
You have a number range interval with the following limits and number
level:
From Number,,To Number,,Number Level
0100000000,,0199999999,,0100578333
If you specify pattern '++++7*' for this interval, several several
source numbers will be mapped to the same target number:
Source Number,,Target Number
0100000001,,0100700001
0100100001,,0100700001
0100200001,,0100700001
0100300001,,0100700001
0100400001,,0100700001
0100500001,,0100700001
If you specify pattern '+++7*', all source numbers will be mapped to
different target numbers:
Source Number,,Target Number
0100000001,,0107000001
0100100001,,0107100001
0100200001,,0107200001
0100300001,,0107300001
0100400001,,0107400001
0100500001,,0107500001

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS232 - NR interval &1: pattern results in duplicates ?

  The SAP error message CNV_NCE_BAS232 with the description "NR interval &1: pattern results in duplicates" typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program. This error indicates that there is a problem with the number range (NR) intervals defined in the system, which are resulting in duplicate entries.
  Cause:
  
  
  Duplicate Number Ranges: The error is often caused by overlapping or duplicate number ranges defined for the same object or entity. For example, if two different number ranges are configured to cover the same interval, the system will not be able to determine which one to use, leading to duplicates.
  
  
  Incorrect Configuration: The configuration of number ranges may not be set up correctly, leading to conflicts. This can happen if the number range intervals are not unique or if they are not properly assigned to the relevant objects.
  
  
  Data Migration Issues: During data migration, if the source data contains entries that conflict with the existing number ranges in the target system, this error can occur.
  
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO (Number Range Objects) and check the configuration for the relevant number range object.
  Ensure that the intervals defined do not overlap and are unique.
  
  
  
  Adjust Number Ranges:
  
  If you find overlapping intervals, adjust the number ranges to ensure that each interval is unique and does not conflict with others.
  You may need to create new number ranges or modify existing ones to resolve the conflict.
  
  
  
  Review Migration Data:
  
  If this error occurs during a data migration process, review the data being migrated to ensure that it does not contain duplicates or conflicts with existing number ranges in the target system.
  
  
  
  Test Changes:
  
  After making adjustments, test the changes in a development or quality assurance environment before applying them to the production system.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to number range management and data migration for additional guidance.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SNRO: To manage number range objects.
  SNUM: To display and manage number ranges.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  Data Migration Tools: Familiarize yourself with the specific data migration tools being used (e.g., SAP S/4HANA Migration Cockpit, LSMW) as they may have specific configurations or requirements regarding number ranges.
  
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.