Inventory Cost Layers

A cost layer is recorded in GP for every receipt of every item.  The cost layer record records the cost paid for the receipt, the document numbers, and the quantity received.  Depending on your valuation method (FIFO vs LIFO) as parts are used, the Quantity Sold field is incremented utill it equals the Quantity Received, indicating the entire layer is consumed.

 These cost layer records can be viewed in, of all places, Inventory->Utiliites->Adjust Costs

 The data is held in the table IV10200.

More information on cost layers can be found in our books Information Flow and Posting or Inventory Control Techniques