First of all, kindly note that Happy Email sends a thank-you email from you to your customers automatically, 30 minutes after they make the first purchase or sign up for a new account on your store. 

Therefore, to test the app, you can go to your store and leave your personal email on the subscription box:

And check your Email Inbox if you receive a Welcome Email after 30 minutes. 

Note: Happy Email only sends email to new customers after your install the app, which means admin accounts or accounts that already exist on your store won't receive thank-you emails. 

Still having trouble? Free free to contacting us at to get support. Our customer success agent and engineer staff will fix this issue for you.

Send personal thank-you emails from Store Founder to impress new customers with Happy Email for FREE.