I’m trying to integrate Google Wallet into my website. I’m getting the message as below. Does anybody know why this happens? What should I do to resolve this issue? Please help me.
Uh oh. There was a problem.
We couldn't complete your purchase because of a technical issue.
Details of the problem below: Unfortunately, we could not confirm your purchase with the merchant's server. Your order has been canceled. Please contact the merchant if this problem continues.
The error message indicates that your server did not acknowledge the order notification from Google. Since you specified a postback url, Google will notify your server and expect a response within 10 seconds, otherwise the transaction is cancelled:
https://developers.google.com/commerce/wallet/digital/docs/postback
Note that you can also check the returned error code from the client side failure handler to determine why the transaction failed:
https://developers.google.com/commerce/wallet/digital/docs/jsreference#failurehandler
The Wallet for digital goods samples page has examples on how to acknowledge postback notifications:
https://developers.google.com/commerce/wallet/digital/docs/samples
