Facebook debugger: why complaining about app_id missing

Question

While using the facebook debugger, it complains:

Warning fb:app_id hasn\'t been included in the meta tags. Specify the app ID so that stories shared to

Answer 1

This means your page is missing the fb:app_id meta tag.

Missing Properties The following required properties are missing: fb:app_id

You must use the fb prefix (the og prefix won't work!)

The meta tag should look like this (replace the app id "474629550209194" below with your own)

<meta property="fb:app_id" content="474629550209194">

The meta tag is fb:app_id - og:app_id (open graph) won't work.

Answer 2

You need to add this into your head tag in HTML source

<meta property="fb:app_id" content="XXXXXXXXXXXXXXX" />

That is default app id.

Replace XXX With your app id

Answer 3

If you don't have an app to associate the website to, then that warning can be ignored.

For an example of a successful website which doesn't have a fb:app_id included, you can run a debug on this stackoverflow page's URL within the Facebook Object debugger, you will see that it also produces the same warning message.

The posts themselves will generally appear the same as they are represented at the bottom of the debugger tool.