I Have the errors
401. That’s an error.
The OAuth client was not found.
That’s all we know.
looks like there is some mismatch between Google App settings and site. Can you please check if there is white space before or after in client id or secret. You will have to trim that if there is white space there.
Also can you please tell me address where customer for is going to be?
I respect the tutorial, I removed the space, I create the link with Google Calendar as indicated in the tutorial.
I am not an English speaker, I did not understand the 2nd question.
Hi Eric, is customers form on a subdomain? For that you need to match URL that is inside Google App and your site. IF that ins not the case you will get Invalid client message from Google.