Quote Originally Posted by delicious View Post
I can checkout through ZC successfully. The problem is that GC is not
updating ZC.

The GC -> Integration Log shows not entry what so ever.
my-site/googlecheckout/logs/response_error.log shows:
"Invalid or not supported Message"

This happens with SSL on or off in my test environment and
in my live environment.

I tried running Rupo's responsehandler_test.php and I get the same
error.

I've also tried with and without htaccess - Same error - Invalid or not supported Message.

My testing environment:
* Zen Cart - 1.3.7
* Google Checkout Module - 1.4.5
* PHP 5.1.2

My live environment:
Zen Cart - 1.3.7
Google Checkout Module - 1.4.5
* PHP 4.4.4-8
I was having the same problem. I went back to the README file and found:

"3. Set the file attribute to 777 for /googlecheckout/logs/response_error.log and
/googlecheckout/logs/response_message.log files.
4. Go to http://<url-site-url>/googlecheckout/responsehandler.php
If you get a 'Invalid or not supported Message', 'Fail to get HTTP Authentication',
or a request for User and Password, go to the next section."

I changed the permissions to 777 and now it works/ The Invalid or Not Supported Message is supposed to be there, I think. I went to my admin and the order that was processed and didn't show up in the admin was now there! So check your permissions on both of those files and then let us know what happens. I think think that is all there is to it.
Amy