How To Fix MDC_MODEL001 - Exactly one table should be marked as ROOT TABLE for BO Type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MDC_MODEL - Messages In Context Of MDC Model

• Message number: 001

• Message text: Exactly one table should be marked as ROOT TABLE for BO Type &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MDC_MODEL001 - Exactly one table should be marked as ROOT TABLE for BO Type &1 ?

  The SAP error message MDC_MODEL001 indicates that there is an issue with the configuration of a Business Object (BO) model in the context of SAP HANA or SAP BusinessObjects. Specifically, it states that exactly one table must be marked as the "ROOT TABLE" for the specified Business Object type.
  Cause:
  This error typically arises when:
  
  Multiple Root Tables: More than one table is marked as a root table in the model.
  No Root Table: There is no table marked as a root table in the model.
  Incorrect Configuration: The configuration of the model does not adhere to the requirements of the Business Object type.
  
  Solution:
  To resolve the MDC_MODEL001 error, follow these steps:
  
  
  Open the Model: Access the model in the SAP HANA Studio or the relevant modeling tool you are using.
  
  
  Check Table Configuration:
  
  Review the tables in your model.
  Ensure that only one table is designated as the root table. This is typically done in the properties of the table.
  
  
  
  Set the Root Table:
  
  If no table is marked as the root, select the appropriate table that should serve as the root and set it as such.
  If multiple tables are marked as root, choose the correct one and remove the root designation from the others.
  
  
  
  Validate the Model: After making the changes, validate the model to ensure that there are no further issues.
  
  
  Save and Activate: Save your changes and activate the model to apply the new configuration.
  
  
  Related Information:
  
  Business Object Types: Understand the specific requirements for the Business Object type you are working with, as different types may have different rules regarding root tables.
  Documentation: Refer to the official SAP documentation for detailed guidelines on modeling and the specific requirements for root tables in your version of SAP.
  Modeling Best Practices: Familiarize yourself with best practices for data modeling in SAP HANA to avoid similar issues in the future.
  
  If the problem persists after following these steps, consider reaching out to SAP support or consulting with a colleague who has experience with SAP data modeling.