How To Fix CNV_PE504 - Data model table &1 is already connected to embedded specification

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE - General messages for posting engine

• Message number: 504

• Message text: Data model table &1 is already connected to embedded specification

What causes this issue?

Data model table &V1& is already connected to embedded specification.
Position of data model in embedded specification: &V2&
Table ID: &V3&

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?

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_PE504 - Data model table &1 is already connected to embedded specification ?

  The SAP error message CNV_PE504 indicates that a data model table is already connected to an embedded specification. This typically occurs during data migration or transformation processes, particularly when using SAP's Conversion Tools or Data Migration tools.
  Cause:
  The error arises when you attempt to connect a data model table to an embedded specification that is already linked to another table or specification. This can happen due to:
  
  Duplicate Connections: The same table is being referenced multiple times in the data model.
  Incorrect Configuration: The configuration of the data model may not be set up correctly, leading to conflicts in table connections.
  Data Model Design Issues: The design of the data model may not adhere to the expected structure, causing conflicts when trying to establish connections.
  
  Solution:
  To resolve the CNV_PE504 error, you can follow these steps:
  
  
  Check Existing Connections:
  
  Review the data model to identify which tables are already connected to the embedded specification.
  Ensure that the table you are trying to connect is not already linked to another specification.
  
  
  
  Modify Connections:
  
  If the table is already connected, consider whether you can modify the existing connection instead of creating a new one.
  If necessary, disconnect the existing connection before attempting to connect the table to the new specification.
  
  
  
  Review Data Model Design:
  
  Ensure that the data model is designed correctly and adheres to the expected structure.
  Make adjustments to the model to avoid conflicts in table connections.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or guides related to the specific data migration or conversion tool you are using for additional insights and best practices.
  
  
  
  Seek Support:
  
  If the issue persists, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP data migration.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Data Migration Tools: Familiarize yourself with the specific data migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) as they may have specific guidelines for handling data model connections.
  Training and Documentation: Consider training sessions or documentation on data modeling and migration processes in SAP to better understand how to avoid such errors in the future.
  
  By following these steps, you should be able to resolve the CNV_PE504 error and successfully connect your data model tables as needed.