Once you decide to integrate via Zoom, you may encounter some problems regarding to the request of pre-approval. The following article below will help you deal with this issue.
When connecting Zoom to Missed.com, if you see a Request pre-approval option, it signifies that your account administrator must approve Missed.com for Zoom before it can be installed. To get permission to continue setting up integration, please, contact your Zoom account admin for pre-approval. Zoom will send them an email containing the request. Once they confirm this request you can try again and get permission to use Zoom on Missed.com. For more details, please follow the Pre-approving and approving apps in Zoom App Marketplace
If owners or administrators need pre-approval, they may still look for applications on the Marketplace and pre-approve them individually. In order to pre-approve your account as an admin, sign in to Marketplace as an admin or owner and use search for "Missed booking" or browse apps categories to find.
Pre-approve to authorize while connectingIn the App permissions section, click the toggle to enable Approve use of this app
Marketplace Pre-approveOnce an app has been pre-approved, it may be installed by other account users. For more details, please follow the Pre-approving and approving apps in Zoom App Marketplace