How To Fix CN251 - Invoicing plan only for externally procured components

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 251

• Message text: Invoicing plan only for externally procured components

What causes this issue?

You can only maintain an invoicing plan for general cost activities,
external activities and externally procurred components.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN251 - Invoicing plan only for externally procured components ?

  The SAP error message CN251 ("Invoicing plan only for externally procured components") typically occurs in the context of project systems (PS) or materials management (MM) when there is an attempt to create or process an invoicing plan for a component that is not externally procured. This error indicates that the invoicing plan functionality is only applicable to components that are procured from external vendors, not for internally produced or stock items.
  Cause:
  
  Component Type: The component you are trying to include in the invoicing plan is not marked as externally procured. This could be due to the material master settings or the way the component is defined in the project.
  Material Master Settings: The material may be set up as a stock item or internally produced, which does not allow for invoicing plans.
  Project Definition: The project or network activity may not be configured to allow invoicing plans for certain components.
  
  Solution:
  
  Check Material Master: Verify the material master record for the component in question. Ensure that it is set up as an externally procured item. You can do this by checking the procurement type in the material master (transaction code MM03).
  Adjust Project Settings: If the component is indeed supposed to be externally procured, check the project settings and ensure that the component is correctly assigned to the project and that the invoicing plan is applicable.
  Use Correct Component: If the component is not meant to be externally procured, consider using a different component that is set up correctly for invoicing plans.
  Consult Documentation: Review SAP documentation or consult with your SAP support team to ensure that the invoicing plan is being used correctly in your specific business context.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MM03 (Display Material), CJ20N (Project Builder), or CN21 (Create Network) to check and modify the relevant settings.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues or provide additional guidance related to this error message.
  User Roles and Authorizations: Ensure that you have the necessary authorizations to make changes to the material master or project settings.
  
  If the issue persists after checking these areas, it may be beneficial to engage with your SAP support team or a consultant who specializes in SAP PS or MM for further assistance.