Ash here from the Shopify team. Welcome to the Shopify Community!
When a domain is successfully connected to Shopify, SSL will be automatically applied to the domain so that your customers can see the site is safe for use. The domain setup needs to be complete in full before SSL can be applied, and it can sometimes take 24-48 hours once a domain is connected. To confirm the domain was set up correctly, could you please let me know the following?:
In addition to the above information, could you please log into your Shopify account and head over to your Online Store> Domains, and send me a screenshot showing the domain status?
I look forward to hearing back and continuing to assist!
Thank you for getting back to me! I'm so glad to hear that the domain just needed some additional time to connect in full. Let me know if you have any further questions, or if there's anything else you need assistance with!