What is up with WPEC and Google Checkout? I am running WP 3.3.1 and WPEC 22.214.171.124. PayPal Standard works great testing on PayPal’s sandbox. Google Checkout sandbox testing DOES NOT (and for that matter neither does PayPal Express Checkout). Even though Google Checkout shows each order charge going through successfully, the callback to WPEC is not being handled. It returns the customer to a transaction results page that says “…your purchase is pending, you will be sent an email once the order clears…” and also lists each item twice on that page. On the Store Sales Dashboard created by WPEC, each order via Google Checkout creates duplicate entries, one under “N/A” and another under the test customer user’s correct email. The “N/A” order has the correct number of items and price, the one under the test user’s email contains double the amount of items and price??? What the heck?
I’ve tried many variations on the Google Checkout Integration settings, disabling all of my WP plugins except for WPEC, and nothing has worked.
The current Google Checkout integration settings I’ve got are:
- My Company will only send digitally signed carts: unchecked
- API callback URL: as specified on the Google Checkout payment settings in WPEC (e.g. http://mydomain.com/index.php
- Callback Contents: Notification Serial Number
- API version: 2.0
I also set Order Processing: Automatically authorize and charge the buyer's credit card under Preferences