How To Fix CNV_NCE_BAS115 - NR mapping values for &1 could conflict with existing numbers

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 115

• Message text: NR mapping values for &1 could conflict with existing numbers

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS115 - NR mapping values for &1 could conflict with existing numbers ?

  The SAP error message CNV_NCE_BAS115 indicates that there are potential conflicts with existing number ranges when trying to map values for a specific object (denoted by &1). This typically occurs during data migration or conversion processes, particularly when using SAP's data migration tools.
  Cause:
  The error arises when the system detects that the new number range or values you are trying to assign may overlap with existing values in the target system. This can happen in scenarios such as:
  
  Migrating master data (e.g., customer numbers, vendor numbers) where the new numbers being imported already exist in the target system.
  Attempting to assign a number range that is already in use by another object or entity.
  Conflicts in number range intervals that are not properly defined or managed.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Values: Review the existing number ranges and values in the target system to identify any overlaps with the values you are trying to import. You can do this by querying the relevant tables or using transaction codes like SE11 or SE16.
  
  
  Adjust Number Ranges: If there are conflicts, you may need to adjust the number ranges in your migration data. This could involve:
  
  Changing the number range in your migration file to avoid conflicts.
  Ensuring that the number ranges you are trying to use are not already assigned to other objects.
  
  
  
  Use Unique Identifiers: If possible, ensure that the identifiers you are migrating are unique and do not conflict with existing records. This may involve generating new unique identifiers for the records being migrated.
  
  
  Review Migration Settings: Check the settings in the migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, LSMW) to ensure that they are configured correctly to handle number ranges.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for additional guidance on handling number range conflicts.
  
  
  Testing: After making adjustments, perform a test migration to ensure that the changes resolve the conflict without introducing new issues.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE16 (Data Browser), and others that can help you analyze and manage number ranges.
  SAP Notes: Check for any SAP Notes related to the CNV_NCE_BAS115 error for specific patches or updates that may address known issues.
  Data Migration Best Practices: Review best practices for data migration in SAP to minimize the risk of conflicts and ensure a smooth transition.
  
  By following these steps, you should be able to identify the cause of the CNV_NCE_BAS115 error and implement a solution to resolve it.