How To Fix CNV_NCE_BAS155 - NR interval &1: non-shifting conv. rule exists for the target interval

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 155

• Message text: NR interval &1: non-shifting conv. rule exists for the target interval

What causes this issue?

You have maintained the rule 'Shifting mode' for the corresponding
number range interval, but at least one other number range interval is
mapped to the same target number range interval using a different
conversion rule.

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?

The rule 'Shifting mode' does not allow mappings of any other type for
the selected target interval. Choose another rule for the corresponding
number range interval, or switch all other mapping values that exist for
the target interval to the 'Shifting mode'.

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_BAS155 - NR interval &1: non-shifting conv. rule exists for the target interval ?

  The SAP error message CNV_NCE_BAS155 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is a conflict with the conversion rules defined for a specific target interval in the data migration process.
  Cause:
  The error message CNV_NCE_BAS155 NR interval &1: non-shifting conv. rule exists for the target interval suggests that there is a non-shifting conversion rule that has been defined for the specified target interval. This means that the system has found a conversion rule that does not allow for the shifting of values within the specified range, which is causing a conflict during the data migration process.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Conversion Rules: Check the conversion rules defined for the target interval. You may need to access the relevant configuration settings in the SAP system to identify the rules that are causing the conflict.
  
  
  Adjust Conversion Rules: If you find that the non-shifting conversion rule is not appropriate for your data migration scenario, consider modifying or removing it. Ensure that the rules allow for the necessary shifting of values if that is required for your data.
  
  
  Check Data Mapping: Ensure that the data mapping between the source and target systems is correctly defined. Sometimes, incorrect mappings can lead to conflicts in conversion rules.
  
  
  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 best practices that can help you resolve the issue.
  
  
  Testing: After making changes to the conversion rules or data mappings, perform a test migration to see if the error persists. This will help you confirm whether the changes have resolved the issue.
  
  
  Seek Support: If you are unable to resolve the issue on your own, consider reaching out to SAP support or consulting with an SAP expert who has experience with data migration processes.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context on how to handle conversion rules during data migration.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration, as it may contain troubleshooting tips and best practices.
  Community Forums: Engage with the SAP Community or other forums where SAP professionals discuss similar issues. You may find others who have encountered and resolved the same error.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to successfully complete your data migration process.