How To Fix CNV_PE_BOD018 - ES data model exists already

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_BOD - Messages in context of OBT/ES interaction

• Message number: 018

• Message text: ES data model exists already

What causes this issue?

In embedded specification (ES), the data model is identified by the root
template ID of the posting engine table parameter. Therefore, it is not
possible to generate an ES data model for the area, which is copied from
the template of another existing area.

System Response

An error <LB>DMOD_ALREADY_EXISTS </>is raised.

How to fix this error?

The workaround solution is to choose another selection method for the
current area, so that <ZH>no </>ES data model will be generated.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_BOD018 - ES data model exists already ?

  The SAP error message CNV_PE_BOD018 indicates that there is an issue related to the existence of a data model in the context of a data migration or conversion process. This error typically arises during the execution of a data migration project, particularly when using SAP's Conversion Tools or Data Migration tools.
  Cause:
  The error message CNV_PE_BOD018 occurs when the system detects that a data model you are trying to create or modify already exists in the database. This can happen due to:
  
  Duplicate Data Models: The data model you are trying to create has already been defined in the system.
  Incomplete Cleanup: Previous migration attempts may not have been fully cleaned up, leaving remnants of old data models.
  Configuration Issues: There may be configuration settings that are causing the system to misinterpret the existence of the data model.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Existing Data Models:
  
  Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to check if the data model already exists.
  If it does exist and is not needed, consider deleting or renaming it.
  
  
  
  Cleanup Previous Migration Attempts:
  
  If you have previously run a migration or conversion process, ensure that all related objects and data models have been properly cleaned up.
  Look for any logs or temporary tables that may need to be cleared.
  
  
  
  Modify the Migration Configuration:
  
  If the data model is indeed required, you may need to adjust your migration configuration to avoid conflicts with existing models.
  Ensure that the naming conventions and identifiers used for the new data model are unique.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation related to the specific migration tool or process you are using. There may be specific guidelines or prerequisites that need to be followed.
  
  
  
  Contact SAP Support:
  
  If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. They may provide insights specific to your system configuration and the migration process you are undertaking.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Tools: Familiarize yourself with the specific migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) as they may have their own set of guidelines and best practices.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.