> ## Documentation Index
> Fetch the complete documentation index at: https://docs.postonce.to/llms.txt
> Use this file to discover all available pages before exploring further.
# Using Facebook Pages with PostOnce
> Connect Facebook Pages to PostOnce, copy Page posts and Stories to other platforms, and publish text, photos and Reels to your Pages. Page picker, limits and errors.
PostOnce works with **Facebook Pages**. It can't post to personal Facebook profiles, because Facebook doesn't allow apps to.
## Connect your Pages
1. On [Accounts](https://postonce.to/dashboard/accounts), click **Connect Facebook**.
2. When Facebook asks, select **every Page** you want in PostOnce, including Pages you connected before.
3. If you manage several Pages, PostOnce shows **Choose Facebook Pages**. Tick the Pages to connect and click **Connect**. Each Page counts as one account on your plan.
Facebook replaces your previous selection each time you connect. A Page you leave unticked loses access in PostOnce.
If no Page appears, make sure your Facebook profile has full control or admin access to the Page, then connect again. Missing a Page in the picker? Reconnect Facebook and allow that Page.
## Facebook as a source
* PostOnce copies the Page's posts, including shared posts. Page Stories are copied only if you turn on **Stories** in the workflow.
* PostOnce checks Facebook for new posts every 10 minutes.
## Publishing to a Page
| Post | What PostOnce publishes |
| - | - |
| Text only | A text post |
| One or more images | A photo post with up to 10 images |
| Video | A Reel |
| Story | One image or a video up to 60 seconds, when **Post everything as Stories** is on |
| | Limit |
| - | - |
| Text | 63,206 characters |
| Images | Up to 10, 10 MB each. Images and video can't be mixed. |
| Video | 1 video, up to 4 GB |
Facebook Reels must be vertical, at least 540 × 960 pixels, 3 to 90 seconds long and 24 to 60 frames per second. PostOnce adds bars to videos that are much taller or wider than Facebook allows, so they aren't rejected. Links go in the post text.
## Facebook errors
| Error message | What to do |
| - | - |
| "Facebook authentication expired" | [Reconnect](/help/reconnect-an-account) Facebook and select every Page again. |
| "Reconnect Facebook and approve every permission." | Reconnect and leave every permission switched on. |
| "Video aspect ratio must be 9:16 for Reels" | Use a vertical 9:16 video. |
| "Video resolution must be at least 540x960 pixels" | Use a higher-resolution video. |
| "Video duration must be between 3 and 90 seconds" | Use a video of 3 to 90 seconds for Facebook. |
| "Video frame rate must be between 24 and 60 fps" | Re-export the video at 24 to 60 fps. |
| "Facebook temporarily limited posting on this Page to prevent spam. Try again later." | Wait a day before retrying, and space out posts to this Page. |
| "Video too large for Facebook: {N}MB. Max size is {M}MB." | Compress the video. |
| "PostOnce posts to Facebook Pages, not personal profiles. Select a Page you manage when Facebook asks, or create a Page first, then try again." | Create or select a Page. |
| "No Facebook Page was connected. Make sure your Facebook profile has full control or admin access to the Page, then try again." | Get full control of the Page in Meta Business settings, then connect again. |
## Still stuck?
Search this help center with ⌘ K, or email [support@postonce.to](mailto:support@postonce.to) from the address you use for PostOnce. Include the platform, the approximate time, and the exact message you saw. Never send passwords, access tokens, API keys, or card details.
Something missing from PostOnce? [Request a feature](https://postonce.featurebase.app/) or check the [roadmap](https://postonce.featurebase.app/roadmap).
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