ShipRush should be running in the System Tray before shipping.
The steps are simple:
a) Open a an Invoice, Purchase Order, or Sales Receipt
(ShipRush supports the Invoice, Orders, Quotes, & Returns forms)
b) Select the customer
c) [optional] Enter line items on the form
d) Select the shipping service from the ShipRush System Tray menu.
e) Process the shipment
f) If the Invoice form is used, the tracking number is automatically posted to the invoice. If another form is used, it is your job to paste the tracking number into a comment or similar field on the invoice (just go to the field and press Ctrl-V to paste it, it is on the clipboard automatically)
To integrate a shipping button into other areas of GP,
the ShipRush ActiveX control can be used by developers.