Facebook App webhooks: Callback URL & Page tab
Digital Marketing Facebook Marketing API 2 years ago
Posted on 16 Aug 2022, this text provides information on Facebook Marketing API related to Digital Marketing. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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manpreet![Tuteehub forum best answer]()
Best Answer
2 years ago
_x000D_ Subscribing to a page for updates is not done by installing it as a page tab app any more, but by making a POST request to /page/subscriptions Method Not Allowed means your server did not accept a POST request to the URL. Facebook makes a POST request to load an app into a page tab. If you tried to use that same URL as your webhook callback URL, you need it to accept POST requests as well. Of course the URL needs to be reachable from the outside, otherwise Facebook could not make a POST request to it. As far as I know Facebook does not accept IP addresses, you need to use a domain name. Plus, webhooks now require an HTTPS URL, with a valid SSL certificate. Self-signed certificates are not accepted, so you practically have no other choice than to use a "real" domain, dyndns or something won't work. That's because you have not actually subscribed your app for updates of the page. Again, that has nothing to do any more with page tabs, it needs a POST request to that endpoint.