How To Fix CNV_NCE_BAS439 - Creating initial mapping values for number range object &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 439

• Message text: Creating initial mapping values for number range object &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_NCE_BAS439 - Creating initial mapping values for number range object &1 ?

  The SAP error message CNV_NCE_BAS439 typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error is related to the creation of initial mapping values for a number range object, which is essential for ensuring that the data being migrated has unique identifiers.
  Cause:
  The error can be caused by several factors, including:
  
  Number Range Object Not Defined: The number range object specified in the migration process may not be defined in the system.
  Number Range Intervals Not Set: The number range intervals for the specified object may not be properly configured or may be missing.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to create or modify number ranges.
  Technical Issues: There may be underlying technical issues, such as database locks or inconsistencies in the number range configuration.
  
  Solution:
  To resolve the CNV_NCE_BAS439 error, you can take the following steps:
  
  
  Check Number Range Object:
  
  Verify that the number range object specified in the error message is correctly defined in the system.
  Use transaction code SNRO to check the configuration of the number range object.
  
  
  
  Define Number Range Intervals:
  
  Ensure that the number range intervals for the object are properly defined. If they are missing, create the necessary intervals.
  Make sure that the intervals do not overlap and that they are set to allow for the required number of entries.
  
  
  
  Review Authorizations:
  
  Check the user authorizations to ensure that the user has the necessary permissions to create or modify number ranges.
  If needed, consult with your SAP security team to adjust the authorizations.
  
  
  
  Check for Technical Issues:
  
  Look for any database locks or inconsistencies that may be affecting the number range object.
  You can use transaction codes like SM12 to check for locks and SM21 to review system logs for any related errors.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  
  Testing:
  
  After making the necessary changes, re-run the migration process to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SNRO - Number Range Object Maintenance
  SM12 - Display and Delete Locks
  SM21 - System Log
  
  
  SAP Documentation: Review the official SAP documentation for data migration and number range management for additional guidance.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.