The WIP Allocations by Cost Object documents with the Allocation of Labor Costs transaction type are used for allocating labor costs based on the Payroll documents.
For allocating the labor costs recorded to the WIP GL account, on the Sources tab, you need to select the source document, Payroll Calculation and select specific department, position, employees whose labor costs will be allocated in accordance with the coefficients specified on the Allocation Base tab. Then on the Allocation tab, you need to review the labor costs matching the specified criteria and click the Fill and Allocate button to distribute the labor costs between Cost Objects.