application blank buyer check checkbox client codes custom customer data email feature field generated generates information integration notification-email number order product purchased receive received send sends serial templated thank-you-email upon

Is it possible for E-Junkie to send us an email with the order details (name, email, product purchased) and not send the customer anything?

If you don't want buyer to be sent anything, you can leave the email field blank and check the "templated email" checkbox. Then you can use our "integration" feature to receive all the order data.

We have a custom application that generates a serial number based upon the client information received in the order notification email, and then sends the customer a thank you email with their custom serial number.

How to go about that ?

Then you should look into our "generated codes" feature.