Integration Guide

The PayPal Shopping Cart – Add to Cart and View Cart Buttons
Creating Advanced PayPal Shopping Cart Buttons on the PayPal Website
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276 June 2012 PayPal Payments Standard Integration Guide
2. Select the Track inventory checkbox to enable entering information that PayPal uses to
track inventory for your item. Then, do one of the following:
– By Item – Select this radio button if you want to track inventory regardless of product
options selected by buyers.
Enter the quantity that you currently have in stock and an alert level. PayPal sends you
an alert by email when your inventory on hand falls to or below the alert level.
– By Option – Select this radio button if want to track inventory by product options that
you specified during “Step 1 – Specifying Basic Features of Your Add to Cart Button”
on page 271. If you set up product options with prices, the button creation tool
automatically selects this radio button.
For each option listed, enter a unique item ID, the quantity that you currently have in
stock, and an alert level. PayPal sends you an alert by email when your inventory on
hand for any option falls to or below its alert level.
Under the Can customers buy an item when it is sold out? heading, do one of the
following:
– Yes – Select this radio button to let buyers checkout and authorize their payments, even
when inventory tracking shows that your item would become oversold. Buyers are not
informed of oversold or out-of-stock situations nor that their items will be on back order
after they complete their transactions.
– No – Select this radio button to prevent buyers from checking out and authorizing their
payments when inventory tracking shows that your item would become oversold. In the
text box, enter the URL of a page on your website where you want PayPal to send buyers
of out of stock items.
If there are some items in stock, but not enough to fulfill a buyer’s request, PayPal
proposes the amount currently available.