How To Fix CNV_PE_UI704 - A root table is not assigned to the data model

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_UI -

• Message number: 704

• Message text: A root table is not assigned to the data model

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.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_PE_UI704 - A root table is not assigned to the data model ?

  The SAP error message CNV_PE_UI704 indicates that a root table is not assigned to the data model in the context of a data migration or conversion process. This error typically arises in scenarios involving SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data conversion tools.
  Cause:
  
  Missing Root Table Assignment: The error usually occurs when the data model being used for the migration does not have a designated root table. A root table is essential as it serves as the primary table from which other related tables are derived.
  Configuration Issues: There may be issues in the configuration of the data model, such as incorrect settings or missing entries in the configuration tables.
  Data Model Definition: The data model may not have been properly defined or activated in the system, leading to the absence of a root table.
  
  Solution:
  
  
  Check Data Model Configuration:
  
  Go to the relevant transaction (e.g., LTMC for Migration Cockpit) and verify the configuration of the data model.
  Ensure that a root table is assigned to the data model. This can usually be done in the data model settings or configuration area.
  
  
  
  Assign a Root Table:
  
  If a root table is missing, you may need to assign one. This typically involves selecting the appropriate table that serves as the root for your data model.
  Consult the documentation or guidelines for the specific migration tool you are using to identify the correct root table.
  
  
  
  Review Migration Settings:
  
  Ensure that all necessary settings and parameters for the migration process are correctly configured.
  Check for any prerequisites that need to be fulfilled before the migration can proceed.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes or Knowledge Base Articles (KBAs) that may address this specific error. SAP frequently updates its documentation and provides solutions for common issues.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test run of the migration process to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific migration tool you are using. This documentation often includes troubleshooting sections that can provide additional insights.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues. You can find discussions, solutions, and best practices shared by other SAP professionals.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for assistance. They can provide more tailored help based on your specific system configuration and requirements.
  
  By following these steps, you should be able to resolve the CNV_PE_UI704 error and successfully assign a root table to your data model.