How To Fix CN088 - Controlling areas of the WBS elements must agree

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 088

• Message text: Controlling areas of the WBS elements must agree

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CN088 - Controlling areas of the WBS elements must agree ?

  The SAP error message CN088 ("Controlling areas of the WBS elements must agree") typically occurs when you are trying to perform an operation (such as posting costs or creating a settlement) involving multiple Work Breakdown Structure (WBS) elements that belong to different controlling areas. In SAP, a controlling area is an organizational unit that represents a closed system for cost accounting purposes.
  Cause:
  The error arises when:
  
  You are attempting to process WBS elements that are assigned to different controlling areas.
  The system requires that all WBS elements involved in a transaction must belong to the same controlling area to ensure consistency in cost accounting.
  
  Solution:
  To resolve the CN088 error, you can take the following steps:
  
  
  Check WBS Elements: Verify the controlling area assigned to each WBS element involved in the transaction. You can do this by navigating to the WBS element master data in SAP.
  
  
  Use WBS Elements from the Same Controlling Area: Ensure that all WBS elements you are trying to use in your transaction belong to the same controlling area. If they do not, you will need to adjust your selection to include only those WBS elements that share the same controlling area.
  
  
  Change WBS Element Assignment: If necessary, you can change the controlling area assignment of the WBS elements. However, this may require administrative permissions and should be done with caution, as it can affect reporting and accounting.
  
  
  Review Project Structure: If you are working with a project that has multiple WBS elements, ensure that the project structure is set up correctly and that all elements are aligned under the same controlling area.
  
  
  Consult Documentation: If you are unsure about the implications of changing controlling areas or WBS assignments, consult your organization's SAP documentation or reach out to your SAP support team for guidance.
  
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like CJ20N (Project Builder) to view and manage WBS elements.
  Master Data: Review the master data for WBS elements using transaction CJ03 (Display WBS Element) to check their controlling area.
  Cost Center Assignment: Ensure that the cost centers associated with the WBS elements are also aligned with the same controlling area.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates related to this error message.
  
  By following these steps, you should be able to resolve the CN088 error and proceed with your SAP transactions successfully.