How To Fix CNV_NCE_BAS420 - Source number range interval could not be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 420

• Message text: Source number range interval could not be determined

What causes this issue?

The system tried to determine the source number range by using:
Number range object = &V1&
Number range subobject = &V2&
Source number = &V3&
Fiscal year = &V4&

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

No relevant number ranges could be found based on this information.

System Response

The source number range cannot be assigned to a number range interval
automatically

How to fix this error?

Check the value for the fiscal year. If this is correct, the number
range object might not be relevant or might not exist.

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_BAS420 - Source number range interval could not be determined ?

  The SAP error message CNV_NCE_BAS420 indicates that the system is unable to determine the source number range interval during a data migration or conversion process. This error typically occurs in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  
  Missing Configuration: The source number range for the object being migrated may not be properly configured in the system.
  Incorrect Object Mapping: The mapping of the source and target objects may not be correctly defined, leading to the inability to find the corresponding number range.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to access the number range configuration.
  Data Inconsistencies: There may be inconsistencies or missing entries in the number range tables that prevent the system from determining the correct interval.
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO (Number Range Objects) and verify that the number range object related to the migration is correctly defined and active.
  Ensure that the intervals for the number range are properly set up and not locked.
  
  
  
  Review Object Mapping:
  
  Check the mapping configuration in the migration tool to ensure that the source and target objects are correctly defined.
  Make sure that the number range object is correctly assigned to the relevant data migration object.
  
  
  
  Authorization Check:
  
  Ensure that the user executing the migration has the necessary authorizations to access and modify number range settings.
  You may need to consult with your SAP security team to verify the user's roles and authorizations.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the relevant tables to ensure that there are no missing or inconsistent entries that could affect the number range determination.
  If necessary, perform data cleansing or corrections to resolve any inconsistencies.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be patches or updates that resolve known issues related to number range determination.
  
  
  
  Debugging:
  
  If the issue persists, consider enabling debugging to trace the execution flow and identify where the number range determination is failing.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SNRO: Number Range Objects
  SE11: Data Dictionary (to check table definitions)
  SE37: Function Module (to analyze related function modules)
  
  
  
  SAP Documentation: Review the official SAP documentation for the specific migration tool you are using, as it may provide additional insights into number range handling.
  
  
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  
  By following these steps, you should be able to identify the root cause of the CNV_NCE_BAS420 error and implement a solution to resolve it.