Wait List within Shopify App

Shopify Partner
2 0 1
Hello, Will my app still get approved if I waitlist merchants who sign up for the application I'm building? This is similar to how the Mailbox app functioned several years ago: https://en.wikipedia.org/wiki/Mailbox_(application). We have some manual steps in our backend processes we need to complete before the store owner can have a positive interaction with our software. I want the merchant experience to be a positive one and think the waitlist functionality will be the best way of achieving this until we can fully automate the solution. After they are done signing up I would like to show them a screen which says we are currently getting the application ready for them and they will hear from us in the next couple of days. Thanks for your help!