• Instructions to Ask a Question

    Click on the "Ask a Question" button and select the application for which you would like to ask questions.

    We have 5 different products namely - Pabbly Connect, Pabbly Subscription Billing, Pabbly Email Marketing, Pabbly Form Builder, Pabbly Email Verification.

    The turnaround time is 24 hrs (Business Hours - 10.00 AM to 6.00 PM IST, Except Saturday and Sunday). So your kind patience will be highly appreciated!

    🚀🚀Exclusive Discount Offer

    Just in case you're looking for any ongoing offers on Pabbly, you can check the one-time offers listed below. You just need to pay once and use the application forever -

    🔥 Pabbly Connect One Time Plan for $249 (🏆Lifetime Access) -  View offer 

    🔥 Pabbly Subscription Billing One Time Plan for $249 (🏆Lifetime Access) - View offer

Emails not sending in gmail

Not open for further replies.


I have this automation working:

the only issue is the Gmails not sending. I get:

"Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential."

Tried resetting the webhook, and using new Gmail steps, but the emails are not sending. Can you help? Here's a task history ID:




Well-known member
Staff member
You need to reauthorize the Gmail app for that. It should fix the issue -



Thank you for your help this is resolved. reauthorised it, same result. Tried specifically clicking the connection name. Tried putting a new email step in. same result. Then I created a second connection and it worked.
Not open for further replies.