Dallas here from Shopify's Social Care Team.
If you're meaning the order confirmation after your customer makes a purchase at your store then that isn't able to be removed. That is going to automatically be sent out despite any changes to any admin settings.
Is there a reason in particular that you're looking to disable this?
This is an accepted solution.
Ah, I totally understand why this would be helpful for you!
This isn't something that can be shut off to ensure all customers receive an invoice. What I have gone ahead and done, though, is sent this up as a merchant frustration for our team to review. I can't promise that it will be changed in the future, but it's now been shared with the team!
Please let me know if you have any further questions.
I cannot believe how many requests for this SIMPLE feature I've seen! Since 2014!! Here I am with the same request.
If you aren't going to make Shopify robust enough to handle what all the apps we're forced to install can do, then at the VERY least allow us to ONLY use the app functionality when necessary. It looks stupidly unprofessional and confusing for customers to simultaneously receive 2 notification emails, and they risk going to the WRONG PLACE to manage their orders.
PLEASE give us a toggle. Thank you.
Your customers are still going to have to go through the shipping step in the checkout process, but if you share a screenshot of the issue that you're facing then I might be able to help you out even further or find a workaround that might assist with what you're looking for.
As for the order confirmation email you just have to go to Settings in your Store Admin and then click on Notification > Order Confirmation and you will be brought to the page where you're able to change the layout of the order confirmation email.
If you have further questions please let me know.