Messenger is connected by signing in with Facebook from the setup wizard and choosing the Page your business uses. That wires the Page so customers who message it get answered — but it does not, by itself, make anyone an owner.
Why owner access is a separate step
Facebook does not reveal a person's identifier for a Page until that person has actually messaged it, so connecting the Page can never automatically grant owner access. Until you complete the separate step below, messaging your own Page gets you the customer assistant, not owner features.
Completing owner access
The wizard shows a short code. Open a chat with your Page and send that code as a message — the reply confirms owner access and includes a dashboard link.
- The code is valid for about fifteen minutes and works only once.
- A fresh one can be issued at any time, without reconnecting the Page.
- A code that doesn't match anything is treated as an ordinary customer message and grants nothing, so a mistyped or expired code is harmless.
The wizard also offers a button that opens the chat directly, and it sometimes completes owner access on its own — but it frequently doesn't, especially the first time someone opens the Page on a phone, and it fails silently when it does. This is a limitation on Facebook's side with no workaround. Treat the button as a shortcut and the code as the route that always works.
The 24-hour messaging window
Facebook blocks automated messages to a customer who hasn't written to the Page in the past twenty-four hours, and no retry changes that. When a reply is blocked this way it is dropped rather than queued, and the business's owners are told so they can reach that customer another way. This affects replies to customers, not owner access.
Credentials
Never send access tokens, app secrets, or any other provider credential to product support.