Creating an app (or selecting an already existing one) is easy, but then you spend a few hours figuring out how to add it as a tab (Especially since it won’t show up in FB search) so how do you actually achieve that?!
For those of you trying to find documentation on Facebook Developers or on Facebook Help, you wont find out how to add your application (Or anyone else’s) to your page there. There is one requirement to be able to do so, and that’s to know your APP_ID. You don’t have to be technical, anyone can do this!
You have to know what your APP_ID is before you are able to do so.
How to locate you APP_ID:
1-Navigate to this link https://developers.facebook.com/apps
2- Summary –> App ID/API Key (It should look something like this “431240176894496”)
3- Copy it for future use
How to add an app to you page:
Use the URI below, replacing “APP_ID” with the ID of the app you want to add.
Then simply select the page you want to add the App to, and you should be able to navigate to it easily!
To delete an app from your page:
1-Go to your page’s “Admin Panel”
2-Click “Edit Page”
3-Navigate to “Apps” in the menu
4-Click on the X on the right hand side to delete