How To Fix CNV_NCE_BAS430 - Cannot skip simulation for overlapping no. range intervals

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 430

• Message text: Cannot skip simulation for overlapping no. range intervals

What causes this issue?

Number range interval ( OBJECT = &V1& / SUBOBJECT = &V2& / NRRANGENR =
&V3& / TOYEAR = &V4& ) overlaps wiith otherr number range intervals. The
activity <ZK>Simulate Number Conversion During System Lock </>is
therefore mandatory.

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?

Ensure that the checkbox <ZK>Skip the Activity Simulate Number
Conversion During System Lock </>in the <ZK>Simulation Settings</> tab
page is not selected for the number range object &V1&.

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_BAS430 - Cannot skip simulation for overlapping no. range intervals ?

  The SAP error message CNV_NCE_BAS430: Cannot skip simulation for overlapping no. range intervals 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 are overlapping number range intervals defined in the system, which can lead to conflicts during the data migration process.
  Cause:
  The error is caused by the presence of overlapping number range intervals in the configuration of the system. Number ranges are used to uniquely identify records in various SAP objects, and if two or more intervals overlap, the system cannot determine which interval to use for new records, leading to ambiguity.
  Solution:
  To resolve this error, you need to identify and correct the overlapping number range intervals. Here are the steps to do so:
  
  
  Identify Overlapping Intervals:
  
  Go to the transaction code SNRO (Number Range Objects).
  Find the relevant number range object that is causing the issue.
  Check the defined intervals for that object to identify any overlaps.
  
  
  
  Adjust Number Ranges:
  
  Once you have identified the overlapping intervals, you will need to adjust them. This may involve:
  
  Merging intervals if they are meant to be the same.
  Splitting intervals to ensure they do not overlap.
  Deleting or deactivating unnecessary intervals.
  
  
  
  
  
  Test the Changes:
  
  After making adjustments, test the number range configuration to ensure that there are no longer any overlaps.
  You can do this by running a simulation or a test migration to see if the error persists.
  
  
  
  Retry the Migration:
  
  Once the overlapping intervals have been resolved, retry the migration process that was previously failing.
  
  
  
  Related Information:
  
  Documentation: Refer to SAP Help documentation for detailed information on number range management and best practices.
  Transaction Codes:
  
  SNRO: To manage number range objects.
  SNUM: To display and manage number ranges.
  
  
  Support: If you continue to face issues, consider reaching out to SAP support or consulting with an SAP expert who can provide guidance based on your specific system configuration.
  
  By following these steps, you should be able to resolve the CNV_NCE_BAS430 error and proceed with your data migration or conversion process.