This page does not have permission to install the custom tab.

This page does not have permission to install the custom tab. I am getting this message from Facebook, and also this message. Please try closing and re-opening your browser window.

Greetings and thank you for your message.

According to Facebook documentation, in order to be able to add tabs to your page, you need to have at least 2000 likes, otherwise, this option will not be available.

You can read more on Page Tabs by clicking here.

Please let us know if you have any further questions.