Set up a Facebook Developer account to auto-upload & schedule Reels

Go to developers.facebook.com and log in with the personal Facebook account that already manages your Page.

Click My Apps → Get Started in the top-right corner, accept the Meta Developer Terms, and verify the account via phone number or credit card if prompted.

1. From the App Dashboard, click Create App.
2. When asked what the app should do, choose Other, then select Business as the app type — this is the type that unlocks Page and Reels publishing permissions.
3. Give it a display name (e.g. reelhearth-uploader), add a contact email, and click Create App.

Open the Graph API Explorer and set it up:

1. Under Meta App, select the app you just created; under User or Page, choose User Token.
2. In Permissions, search for and add pages_show_list, pages_read_engagement, and pages_manage_posts.
3. Click Generate Access Token and approve the permissions modal for your Page.
4. Copy the resulting string — this is a short-lived user token that expires in an hour or two, and it's only a stepping stone to the permanent token in the next step.

Grab your App ID and App Secret from App Settings → Basic, then run these two calls — pasting each URL straight into a browser works fine.

First, exchange the short-lived token for a 60-day long-lived user token:

https://graph.facebook.com/v19.0/oauth/access_token?grant_type=fb_exchange_token&client_id=APP_ID&client_secret=APP_SECRET&fb_exchange_token=SHORT_LIVED_TOKEN

Then use the access_token from that response to call /me/accounts:

https://graph.facebook.com/v19.0/me/accounts?access_token=LONG_LIVED_USER_TOKEN

The response lists every Page you manage. Each entry's access_token is your permanent Page access token, and its id is the Page ID — save both. A Page token derived from a 60-day user token has no expiration date; it only stops working if you change your Facebook password or remove the app.

Open the Access Token Debugger, paste in the Page access token, and confirm three things before moving on:

1. Type reads Page, not User.
2. Expires reads Never.
3. Data Access Expires reads Never (or a clearly extended date).

If any of those show a countdown instead, the token was minted from a short-lived user token directly — go back to step 4 and redo the exchange before wiring it into anything.

In the dashboard, open Accounts and choose Connect Facebook Page. Paste in the Page access token and Page ID from step 4.

Both are copied into Reel Hearth's local config directory on your machine and used directly against the Graph API from there — nothing passes through a Reel Hearth server. With the Page connected, open a subject's queue and set publish slots the same way you would for YouTube; run a dry run first to confirm the pipeline end-to-end before letting it publish for real.