Hi shopify geniuses,
I need guys your help because I tried to look everywhere for a fix or advice but didnt find anything..
So my problem is, Im using lithuanian post for delivery and it doesnt shows in shipping carrier. So whenever Im fullfilming an order, Im selecting Other Carrier and adding track id with link which is totally fine to me, Im also pressing to notify customer that they purchase was sent.
When customer is receiving order, I want to send them an email with “Delivery has been completed”, in Setting > Notification I can see that I have this kind of email in my system.
But how I can send this email to my customer?
I hope you guys will help me to figure it out.

