How To Fix /SAPAPO/DC_MSG121 - More than one row definition with node number &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DC_MSG -

• Message number: 121

• Message text: More than one row definition with node number &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/DC_MSG121 - More than one row definition with node number &1 ?

  The SAP error message /SAPAPO/DC_MSG121 indicates that there is an issue with the data model in SAP Advanced Planning and Optimization (APO). Specifically, it means that there are multiple row definitions associated with the same node number in the data model, which is not allowed.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Duplicate Row Definitions: There are multiple entries in the data model that have the same node number, which can occur due to incorrect configuration or data entry.
  Data Model Corruption: The data model may have become corrupted, leading to inconsistencies in the definitions.
  Transport Issues: If the data model was transported from one system to another, it might have led to duplicate entries.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Row Definitions:
  
  Go to the relevant transaction in SAP APO (e.g., /SAPAPO/DM for Data Model).
  Review the row definitions associated with the node number mentioned in the error message.
  Identify and remove any duplicate row definitions.
  
  
  
  Adjust Data Model:
  
  If duplicates are found, you can either delete the unnecessary row definitions or modify them to ensure that each node number is unique.
  
  
  
  Consistency Check:
  
  After making changes, perform a consistency check on the data model to ensure that there are no further issues.
  You can use transaction /SAPAPO/DM to run consistency checks.
  
  
  
  Transport Management:
  
  If the issue arose from a transport, ensure that the transport request is correctly configured and that no duplicates were introduced during the transport process.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to data model management in APO for additional guidance.
  
  
  
  Contact SAP Support:
  
  If the issue persists after following the above steps, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/DM for data model management and /SAPAPO/OM for order management.
  SAP Notes: Check for any SAP Notes related to this error message for specific patches or updates that may address the issue.
  Data Model Best Practices: Review best practices for managing data models in SAP APO to prevent similar issues in the future.
  
  By following these steps, you should be able to resolve the error and ensure that your data model is correctly configured.