Adjust the cost for a posted Sales, Purchasing or inventory transactions in MS Dynamics GP

If you facing a problem in your inventory costing you can apply the following scenario  but only if your valuation methods are (FIFO Perpetual, LIFO Perpetual and Average) 

Go to MS Dynamics GP>>Tools>>Utilities>>Inventory>>Adjusts Costs

Then enter the item ID and the "posted" transaction date as well and change the item cost and the system will create GL transaction for the variance cost.