Purchase Return (RET) is used to remove items from inventory for shipment back to the vendor.
To create a Purchase Return, in POS Pro:
In Shipments, tap Outgoing at the top of the screen.
In Outgoing, tap New Outgoing.
In the New Outgoing dialog that opens, select Purchase Return in the Type field. Then, select the vendor and tap Create in the upper right corner.
Once the Purchase Return has been created, its Document tab will display. In that tab, indicate the required ship method and tracking number.
Tap Items at the top-right of the screen.
If necessary to print a Purchase Receipt or tags for all items, tap Print in the upper right corner.
Also, to automatically print any of the above on finalizing, turn the Print on Finalize switch on.