How To Fix CNV_NCE_BAS452 - No conversion rule maintained for object

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_NCE_BAS - Number conversion engine: messages

• Message number: 452

• Message text: No conversion rule maintained for object

What causes this issue?

There is no conversion maintained for the object.

System Response

There for one to one mapping will not be processed during conversion

How to fix this error?

Check if conversion rule is set for the object.

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_BAS452 - No conversion rule maintained for object ?

  The SAP error message CNV_NCE_BAS452 indicates that there is no conversion rule maintained for a specific object in the context of a data conversion or migration process. This error typically arises during the execution of a data migration project, particularly when using SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  
  Missing Conversion Rules: The primary cause of this error is that the system is trying to convert data for an object (like a table or field) for which no conversion rules have been defined.
  Incorrect Configuration: The configuration for the data migration might be incomplete or incorrect, leading to the absence of necessary conversion rules.
  Object Not Supported: The object in question may not be supported for conversion in the current migration scenario.
  
  Solution:
  
  
  Define Conversion Rules:
  
  Go to the relevant transaction or tool where conversion rules are maintained (e.g., transaction code LTMC for Migration Cockpit).
  Check if the conversion rules for the specific object are defined. If not, you will need to create them.
  Ensure that the rules are correctly mapped to the source and target fields.
  
  
  
  Check Migration Object:
  
  Verify that the migration object you are working with is correctly set up and that all necessary objects have been included in the migration project.
  If the object is not supported, you may need to find an alternative approach or workaround.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to the specific migration tool you are using. This may provide insights into how to define conversion rules and what objects are supported.
  
  
  
  Use SAP Notes:
  
  Check for any relevant SAP Notes that might address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  
  
  
  Testing:
  
  After defining the conversion rules, perform a test run of the migration to ensure that the error is resolved and that data is being converted as expected.
  
  
  
  Related Information:
  
  SAP Help Portal: The SAP Help Portal provides extensive documentation on data migration and conversion processes, including how to set up and manage conversion rules.
  SAP Community: Engaging with the SAP Community can provide insights from other users who may have encountered similar issues and can share their solutions.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTMC (for Migration Cockpit) and LTMOM (for Migration Object Modeler) to manage migration objects and rules effectively.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.