To change the purchase order cost on a purchase order the User has to be given permission.  This is set up within the Administration of Prima. 

Note: Changes within the Administration module should only be conducted by the dealer's nominated Prima Coordinator or by the dealer's appointed Prima administrator. 

  1. Go to Prima Administration > login > User > double click the User name > set Change Purchase Cost? to Y. (To restricted purchase cost changes set this to N).
  2. Save
  3. Close  the Administration module

When this system key is set to Y then the line on the PO cost can be changed UPTO when the purchase invoice is completed.

On receipt of the purchase order, the cost is written back to the batch, product unit / pricing and the supplier tab within the stock product at the cost of receipt.

Changes made to the purchase order cost after receipt will update the relating sales order and sales invoice cost.