How To Fix CNV_NCE_BAS137 - NR interval &1: no one-to-one mapping values found

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 137

• Message text: NR interval &1: no one-to-one mapping values found

What causes this issue?

You have chosen the rule 'One-to-one' for the corresponding number range
interval, but no one-to-one mapping values exist.

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?

Choose another rule for the number range interval, or specify one-to-one
mapping values for the numbers that belong to it.

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_BAS137 - NR interval &1: no one-to-one mapping values found ?

  The SAP error message CNV_NCE_BAS137 with the description "NR interval &1: no one-to-one mapping values found" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system is unable to find a one-to-one mapping for the specified number range interval.
  Cause:
  
  Missing Mapping Entries: The error usually arises when there are no corresponding mapping entries for the specified number range interval in the migration or conversion settings.
  Configuration Issues: There may be issues with the configuration of number ranges in the source or target system.
  Data Inconsistencies: The data being migrated may not have valid entries that correspond to the expected number range mappings.
  Incorrect Number Range Interval: The specified number range interval may not be correctly defined or may not exist in the target system.
  
  Solution:
  
  
  Check Mapping Configuration:
  
  Go to the migration or conversion tool and check the mapping configuration for the number range intervals.
  Ensure that there are valid one-to-one mappings defined for the specified interval.
  
  
  
  Define Missing Mappings:
  
  If mappings are missing, you may need to create them manually in the migration tool or the relevant configuration settings.
  
  
  
  Review Number Range Settings:
  
  Verify the number range settings in both the source and target systems. Ensure that the number ranges are correctly defined and active.
  Use transaction codes like SNRO to check the number range objects and their intervals.
  
  
  
  Data Validation:
  
  Validate the data being migrated to ensure that it conforms to the expected formats and values for the number ranges.
  Check for any inconsistencies or errors in the source data that may prevent successful mapping.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to the specific migration or conversion process you are using. There may be specific guidelines or troubleshooting steps provided.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with detailed information about the error and the context in which it occurred.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SNRO (Number Range Objects) and SCC1 (Client Copy) if applicable.
  SAP Notes: Search for SAP Notes related to the CNV_NCE_BAS137 error for any specific patches or updates that may address the issue.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration to understand the requirements and configurations needed for successful mapping.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.