How To Fix CNV_CMIS_M044 - A rule for the entered table and field name already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CMIS_M - Message class for CMIS Migration

• Message number: 044

• Message text: A rule for the entered table and field name already exists

What causes this issue?

Only one rule can be defined on a single table field. For the entered
table field name, a rule is specified already.

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?

Enter a different table or field name, or delete the rule assignment.

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_CMIS_M044 - A rule for the entered table and field name already exists ?

  The SAP error message CNV_CMIS_M044 indicates that there is an attempt to create a rule for a table and field name that already has an existing rule defined in the system. This error typically occurs during data migration or conversion processes, particularly when using the SAP Conversion Tools or the SAP Data Migration Workbench.
  Cause:
  The primary cause of this error is that the system has detected a duplicate entry for the specified table and field combination in the rules configuration. This can happen if:
  
  A rule was previously created for the same table and field.
  There was an attempt to import or create a rule that conflicts with an existing one.
  There may be a misunderstanding in the naming conventions or identifiers used for the rules.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Rules:
  
  Navigate to the relevant configuration area where the rules are defined (e.g., the Data Migration Workbench or the specific transaction for managing conversion rules).
  Look for existing rules associated with the table and field name that triggered the error.
  
  
  
  Modify or Delete Existing Rule:
  
  If you find an existing rule that is not needed, you can delete it or modify it to accommodate the new requirements.
  If the existing rule is necessary, consider adjusting the new rule you are trying to create to avoid the conflict.
  
  
  
  Use Unique Identifiers:
  
  Ensure that the new rule you are trying to create has a unique identifier or name that does not conflict with existing entries.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation or help resources related to the specific migration or conversion tool you are using. This may provide additional insights into managing rules and avoiding conflicts.
  
  
  
  Seek Support:
  
  If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with SAP experts who can provide guidance based on your specific system configuration and requirements.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTMC (for Migration Cockpit) or LTMOM (for Migration Object Modeler) if you are using these tools for data migration.
  SAP Notes: Check for any SAP Notes related to the error message or the specific migration tool you are using, as they may contain patches or additional troubleshooting steps.
  Best Practices: Follow best practices for data migration, including thorough testing in a development or sandbox environment before executing changes in production.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.