How To Fix RM813 - Selected row is already an excess activity row

SAP Error Message - Details

• Message type: E = Error

• Message class: RM - Messages for Repetitive Manufacturing

• Message number: 813

• Message text: Selected row is already an excess activity row

What causes this issue?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

To calculate the difference, you can only use activities that are not
already differences.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RM813 - Selected row is already an excess activity row ?

  The SAP error message RM813, which states "Selected row is already an excess activity row," typically occurs in the context of project management or production planning within SAP. This error indicates that the system is trying to process a row that has already been marked as an excess activity, which is not allowed.
  Cause:
  
  Duplicate Entry: The error often arises when there is an attempt to add or modify an activity that has already been classified as an excess activity.
  Incorrect Data Handling: It may occur due to incorrect handling of data in the project or production order, where the system does not allow the same activity to be processed multiple times.
  Configuration Issues: There might be configuration settings in the project management or production planning modules that are causing this behavior.
  
  Solution:
  
  Check Activity Status: Review the status of the activity in question. If it is already marked as an excess activity, you may need to adjust your approach rather than trying to add it again.
  Remove Duplicate Entries: If you have inadvertently created duplicate entries, remove or correct them to ensure that each activity is unique.
  Review Configuration: Check the configuration settings related to excess activities in your SAP system. Ensure that they are set up correctly to avoid conflicts.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling excess activities in your version of SAP.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert who can provide tailored assistance based on your system's configuration.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help you navigate to the activity or project in question (e.g., CJ20N for project management).
  SAP Notes: Check for any SAP Notes related to error RM813, as they may provide additional insights or patches that address the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the RM813 error and continue with your project or production planning activities in SAP.