How To Fix WN766 - Error while setting Actual Costing live for valuation area &

WN766 - Overview

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 766

• Message text: Error while setting Actual Costing live for valuation area &

What causes this issue?

You try to set Actual Costing live via transaction WB01; however, an
error has occurred within the Actual Costing API, which prevents Actual
Costing live setting

System Response

Actual Costing live setting could not be executed for the corresponding
valuation area.

How to fix this error?

If you want to set Actual Costing live, you have to call transaction
WB02 for the corresponding site or FCML4H_STARTUP for the corresponding
valuation area.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WN766 - Error while setting Actual Costing live for valuation area & ?

  The SAP error message WN766 indicates that there is an issue when trying to set Actual Costing live for a specific valuation area. This error typically arises during the configuration or execution of the Actual Costing process in SAP, particularly in the context of Material Ledger.
  
  Cause:
  The WN766 error can be caused by several factors, including:
  
  
  Incomplete Configuration: The Material Ledger may not be fully configured for the valuation area in question. This includes missing settings in the configuration for Actual Costing.
  
  
  Existing Data Issues: There may be existing data inconsistencies or issues in the valuation area that prevent the system from activating Actual Costing.
  
  
  Period Closing: If the periods are closed or if there are open periods that need to be addressed, this can also lead to the error.
  
  
  Authorization Issues: The user attempting to set Actual Costing live may not have the necessary authorizations to perform this action.
  
  
  Technical Issues: There could be underlying