Google Checkout Merchant Help

Google Help › Google Checkout Merchant Help › Selling with Google Checkout › Fix a problem  

Fix a problem

• Buy Now buttons

  • Buy Now Buttons lead to unexpected pages
  • Oops error - Buy Now Buttons
  • An 'Oops' error may appear for Buy Now Buttons for several reasons
  • Buy Now buttons aren't displayed correctly.

• Coupons

  • Your coupons don't result in the intended discount.
  • Your coupon codes and discounts aren't functioning correctly with merchant calculations.

• Custom-built shopping carts (API)

  • I have a valid SSL certificate, but I can't receive notifications. What should I do?
  • Error message - Bad signature on cart
  • Server timeout error/three second rule
  • HTTP 401 error
  • Error message - No seller found with ID
  • Why do only some items in my store fail to post to Google Checkout?
  • HTTP 500 server error
  • Error message - Merchant calculations URL isn't HTTPS
  • Error message - checkoutForm URL doesn't exist
  • Troubleshooting integrations
  • Failed merchant calculations
  • Error message - Currency used in the cart must match the currency of the seller account
  • API access error message_ Bad username/password
  • Error message - You are not configured to post unsigned carts

• Email invoices

  • Oops error - Email invoices
  • I can't find my invoice in the Merchant Center

• Tax and shipping

  • When checking out, your buyer receives a 'does not ship to' error message.
  • An incorrect shipping and/or tax fee is charged when checking out.