Thanks for reaching out in our Community forums and sharing your concern. I’m happy to help.
I understand that you are running into a few issues with submitting your app for approval. It looks like you need to submit a recording of your application functioning from a Merchant’s customers point of view. This allows our team to review the app and move it along the application process. This needs to be done on one of the following supports browsers like Google Chrome, Safari, or Firefox.
Our team suggests using Browserstack as it allows you to easily test your app and share the screencast.
Feel free to reply back to this thread with any questions or updates and we can continue our conversation further!
I’m happy to hear that your team was able to successfully submit the app. If you haven’t already, I’d strongly suggest checking out our Shopify Developers Resource that has information regarding Shopify’s extensible platform, APIs, and developer tools help you design apps that solve merchant problems at scale.
Best of luck for your submission and let me know if you have any questions!