How To Fix CNV_20700229 - No read only field found for Object Id &1 and Structure &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20700 - Material number conversion

• Message number: 229

• Message text: No read only field found for Object Id &1 and Structure &2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20700229 - No read only field found for Object Id &1 and Structure &2 ?

  The SAP error message CNV_20700229 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 the system is unable to find a read-only field for a specified Object ID and Structure.
  Cause:
  
  Missing Configuration: The error may arise if the configuration for the data migration object is incomplete or incorrect. The system expects certain fields to be defined as read-only, but they are either missing or not properly configured.
  Data Model Changes: If there have been changes in the data model (for example, during an upgrade or migration), the expected fields may no longer exist or may have been renamed.
  Incorrect Mapping: The mapping of fields between the source and target systems may not be set up correctly, leading to the system being unable to identify the necessary fields.
  Authorization Issues: Sometimes, the user executing the migration may not have the necessary authorizations to access certain fields or objects.
  
  Solution:
  
  Check Configuration: Review the configuration settings for the data migration object in the SAP system. Ensure that all required fields are defined and that the read-only fields are correctly specified.
  Review Data Model: If there have been recent changes to the data model, verify that the fields expected by the migration tool still exist and are correctly defined.
  Field Mapping: Double-check the field mapping between the source and target systems. Ensure that all necessary fields are mapped correctly and that there are no discrepancies.
  Authorization Check: Ensure that the user executing the migration has the necessary authorizations to access the required fields and objects.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be additional guidelines or troubleshooting steps provided for this error.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTMC (for Migration Cockpit) or LTMOM (for Migration Object Modeler) to manage migration objects.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurs.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.