To receive more than the quantity ordered, go to the Receiving Screen and double-click on the line item or use the button [Receive line in details mode] to get to the Receiving “Details” Screen.  Enter the quantity, then check the box immediately to the right called “Override PO quantity and close“.

NOTE: In order to over-receive Purchase Orders, the setting “Allow users to over receive Purchase Orders?” must be enabled for the user in the [Permissions] folder of the User Master File.

TIP: Another alternative would be to do a Change Order, that is, you could also modify the quantity of the PO before receiving.  You can learn more in the following section of the Online Help in SpendMap…
– Purchasing (Main Module) > Purchase Orders > Modify a processed PO (About Change Orders)