The Order Tracking plugin comes with a feature that lets offer order payment via PayPal directly on your site. To enable this, go to Settings > Payment and toggle on the switch for Allow Order Payment By PayPal.
There are several extra options that allow you to fine tune this feature:
Default Post-Payment Status
What status, if any, should an order be set to after payment is received?
PayPal Email Address
What email address is associated with the PayPal account?
What currency are your orders priced in?
“Thank You” Page URL
What page should customers be taken to after successfully completing a PayPal payment?
Setting up Payment for an Order
After an order is created, either manually in the admin or via the customer order form, you can go to the order edit screen to update the payment details.
If you would like to make the order available for payment, simply set Payment Completed to No and enter a price in the Order Payment Price field. Now, the next time that order is tracked, there will be an extra option to pay for it.
And, once it’s paid for, it will be automatically marked as payment completed.