How To Fix MPE_RTG_UI170 - An operation with the same source operation already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_RTG_UI - Messages for Routing Maintenance

• Message number: 170

• Message text: An operation with the same source operation already exists

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 MPE_RTG_UI170 - An operation with the same source operation already exists ?

  The SAP error message MPE_RTG_UI170 with the description "An operation with the same source operation already exists" typically occurs in the context of the SAP Manufacturing and Production Planning modules, particularly when dealing with routing or operation management.
  Cause:
  This error usually arises when you are trying to create or modify a routing operation that conflicts with an existing operation. The system detects that there is already an operation defined with the same source operation, which leads to duplication and inconsistency in the routing data.
  Possible Scenarios Leading to the Error:
  
  Duplicate Entries: You may be attempting to add a new operation that has the same parameters (like operation number, work center, etc.) as an existing operation.
  Incorrect Data Entry: There might be a mistake in the data entry where the same operation is inadvertently being referenced.
  System Configuration Issues: There could be issues with the configuration of the routing or the way operations are defined in the system.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Operations: Review the existing operations in the routing to identify if there is indeed a duplicate operation. You can do this by navigating to the routing transaction (e.g., CA01, CA02) and checking the operations listed.
  
  
  Modify or Delete Duplicates: If you find a duplicate operation, you can either modify it to meet your requirements or delete it if it is not needed.
  
  
  Correct Data Entry: Ensure that the data you are entering for the new operation is unique and does not conflict with existing operations.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on routing and operations to ensure compliance with best practices.
  
  
  Check for System Updates: Sometimes, system bugs can cause unexpected behavior. Ensure that your SAP system is up to date with the latest patches and updates.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CA01 (Create Routing), CA02 (Change Routing), and CA03 (Display Routing).
  Routing Management: Understanding how routing works in SAP, including the structure of operations and sequences, can help prevent such errors in the future.
  User Roles and Permissions: Ensure that you have the appropriate permissions to create or modify operations in the routing.
  
  By following these steps, you should be able to resolve the error and continue with your operations in SAP.