How To Fix OM518 - Select at least one cost component split

SAP Error Message - Details

• Message type: E = Error

• Message class: OM - Customizing Materialwirtschaft

• Message number: 518

• Message text: Select at least one cost component split

What causes this issue?

To use the actual cost component split, you must have selected at least
one type of cost component split.

System Response

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

How to fix this error?

Select either the main cost component split, the auxiliary cost
component split, or both types of cost component split.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OM518 - Select at least one cost component split ?

  The SAP error message OM518 ("Select at least one cost component split") typically occurs in the context of cost planning or cost allocation in SAP, particularly when working with cost component splits in controlling (CO) or product costing (CO-PC). This error indicates that the system requires at least one cost component to be selected for the operation you are trying to perform.
  Cause:
  
  No Cost Component Selected: The most common cause of this error is that the user has not selected any cost components in the relevant screen or transaction.
  Configuration Issues: There may be issues with the configuration of cost components in the system, such as missing or incorrectly defined cost component structures.
  Data Entry Errors: Users may inadvertently skip selecting cost components due to oversight or misunderstanding of the interface.
  
  Solution:
  
  Select Cost Components: Ensure that at least one cost component is selected in the relevant transaction or screen. This is usually done in the cost planning or cost allocation screens.
  Check Configuration: If the error persists, check the configuration of cost components in the system. Ensure that the cost component structure is correctly defined and that the necessary cost components are available for selection.
  Review User Input: Double-check the data entry to ensure that all required fields are filled out correctly and that the user is following the correct procedure for selecting cost components.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on the specific transaction or process you are working with, as there may be additional requirements or steps needed.
  
  Related Information:
  
  Transaction Codes: The error may occur in various transactions related to cost planning, such as KP06 (Cost Center Planning), KP26 (Activity Type Planning), or others.
  Cost Component Structure: Understanding the cost component structure is crucial. You can view and modify this in the configuration settings under Controlling (CO) -> Cost Element Accounting -> Master Data -> Cost Component Structure.
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional troubleshooting steps.
  User Training: Ensure that users are adequately trained on the processes involving cost components to minimize errors.
  
  If the issue continues after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in controlling and product costing.