Tracking labor costing

We are relatively new to Acumatica and would like to understand totally how the COGS labor/burden are captured throughout the manufacturing process and where/how costing is hitting the GL.  Currently what we are seeing is labor costs debiting WIP and crediting an account set up in ‘Labor Codes’ ---when the finished good product is produced, the total cost for material, labor, burden costs are crediting WIP and debiting our finished goods GL account.  The labor and overhead costs are not being posted separately or captured in a GL account.  In our previous ERP system, the labor, burden, overhead and material costs hit separate GL accounts.  We can see the amounts for Labor Planned, Labor Actual and Labor Variance amounts in the Production Order which produced the goods.  Any clarification would be most helpful.