How To Fix CN078 - Business areas of WBS elements must agree

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 078

• Message text: Business areas of WBS elements must agree

What causes this issue?

A. You want to change the WBS element of a component.
The business area balance sheet is active for the company code of the
WBS elements. The WBS element you entered is not assigned to the same
business area as the original WBS element.

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

B. You want to reallocate a component that is assigned to a WBS element
to another activity.
The business area balance sheet is active for the company code of the
WBS elements. The WBS element of the component is not assigned to the
business area of the target activity's WBS element.

How to fix this error?

A. Choose a WBS element from the same business area.
B. Choose an activity with a WBS element in the same business area.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN078 - Business areas of WBS elements must agree ?

  The SAP error message CN078 ("Business areas of WBS elements must agree") typically occurs in the context of project management and controlling when there is a mismatch in the business areas assigned to different Work Breakdown Structure (WBS) elements within a project. This error is particularly relevant when you are trying to perform transactions that involve multiple WBS elements, such as creating or posting costs, and the system requires that all WBS elements involved share the same business area.
  Cause:
  The error is caused by the following scenarios:
  
  Different Business Areas: The WBS elements involved in the transaction are assigned to different business areas. In SAP, business areas are used for internal reporting and must be consistent across related elements.
  Configuration Issues: There may be configuration settings in the project system that enforce this rule, and it may not be set up correctly.
  Data Entry Errors: During the creation or modification of WBS elements, different business areas may have been assigned inadvertently.
  
  Solution:
  To resolve the CN078 error, you can take the following steps:
  
  
  Check WBS Elements: Verify the business areas assigned to the WBS elements involved in the transaction. You can do this by navigating to the WBS element in the project structure and checking its attributes.
  
  
  Align Business Areas: If you find that the WBS elements have different business areas, you will need to either:
  
  Change the business area of one or more WBS elements to ensure they match.
  Create a new WBS element that has the same business area as the others if changing is not feasible.
  
  
  
  Review Project Structure: Ensure that the overall project structure is consistent and that all related WBS elements are set up correctly with the same business area.
  
  
  Consult Configuration: If you are unsure about the configuration settings, consult with your SAP system administrator or a functional consultant to ensure that the project system settings align with your organization's reporting requirements.
  
  
  Testing: After making the necessary changes, test the transaction again to ensure that the error is resolved.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CJ20N (Project Builder) to view and edit WBS elements.
  Documentation: Refer to SAP documentation or help files for more detailed information on WBS elements and business area configuration.
  User Roles: Ensure that you have the necessary permissions to make changes to WBS elements and their attributes.
  
  By following these steps, you should be able to resolve the CN078 error and proceed with your project-related transactions in SAP.