Average costing converting to FIFO

Does anynody know how to convert a customer from using average costign to FIFO?

regards

Andrew

http://dynamicsuser.net/search/SearchResults.aspx?q=costing+method&o=Relevance

  1. Make sure that all invoices posted for received goods and all production closed…

  2. Write off all inventory

  3. Change Costing Method on item card

  4. Post Positive Inventory