How To Fix RU549 - Division through zero: Operation quantity of milestone operation is zero

SAP Error Message - Details

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 549

• Message text: Division through zero: Operation quantity of milestone operation is zero

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 RU549 - Division through zero: Operation quantity of milestone operation is zero ?

  The SAP error message RU549, "Division through zero: Operation quantity of milestone operation is zero," typically occurs in the context of project management or production planning within SAP. This error indicates that a calculation is attempting to divide by zero, which is not mathematically valid. This usually happens when the system tries to process a milestone operation that has an operation quantity of zero.
  Causes:
  
  Zero Operation Quantity: The most common cause is that the milestone operation has been defined with an operation quantity of zero. This can happen due to incorrect data entry or configuration.
  Incorrect Data in Master Records: The master data for the project or production order may have incorrect or incomplete information.
  Missing Dependencies: If the milestone operation is dependent on other operations or activities that have not been completed or have zero quantities, it can lead to this error.
  Configuration Issues: There may be issues in the configuration of the project or production order that lead to incorrect calculations.
  
  Solutions:
  
  Check Operation Quantity: Review the milestone operation in the project or production order to ensure that the operation quantity is set correctly. If it is zero, update it to the correct value.
  Review Dependencies: Ensure that all preceding operations or activities that the milestone depends on are completed and have valid quantities.
  Correct Master Data: Verify the master data related to the project or production order. Ensure that all relevant fields are filled out correctly and that there are no inconsistencies.
  Recalculate or Reprocess: After making the necessary corrections, try to recalculate or reprocess the project or production order to see if the error persists.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the error message and the context in which it occurs.
  Contact Support: If the issue persists after checking the above points, consider reaching out to SAP support or your internal IT team for further assistance.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CJ20N (Project Builder) or CO02 (Change Production Order) to access and modify the relevant data.
  Debugging: If you have access to debugging tools, you can trace the program execution to identify where the division by zero is occurring.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  
  By following these steps, you should be able to identify the root cause of the RU549 error and implement a solution to resolve it.