Connect YouTube to Facebook

Before you start

• A YouTube channel. Any channel you can sign in to works, monetized or not.
• A Facebook Page you manage. Facebook only lets apps post to Pages, not personal profiles.
• A Post Once account. The free plan includes 10 reposts, with no card needed.

How to connect YouTube to Facebook

1. Create a free account at app.postonce.com. After two short intro screens, Post Once asks where you post.

2. Under Where do you post first?, pick YouTube and press Continue.

   

3. Under Where else should it land?, pick Facebook. Add any other apps, or a backup, then press Continue.

4. On Connect your accounts., press Connect on the YouTube row. Sign in with the Google account that owns your channel and allow access.

   

5. Press Connect on the Facebook row. Sign in with Facebook. In the permissions dialog, make sure the Page you want is selected. Back in Post Once, pick it in the Post to Page list on the Facebook row. With only one Page, it is picked for you. Nothing is posted to Facebook until a Page is picked.

6. When both rows say Connected, press Go to dashboard.

From then on, keep posting on YouTube as usual. Post Once checks it about every five minutes and reposts each new post to Facebook.

Already using Post Once?

If YouTube is already the source of your bridge, open Bridge and press Connect next to Facebook in the Destinations card, or press Add destination on the dashboard. Then pick the Page in the Post to Page list.

If your bridge reads from another account, add a second bridge with YouTube as its source from the bridge switcher. Free and Solo include 1 bridge, Studio 3 and Agency as many as you need. See bridges.

What each YouTube post becomes on Facebook

On YouTube	On Facebook
A Short	A Reel if it runs up to 90 seconds, otherwise a Page video.
A video over 3 minutes, or a landscape one	A Page video, up to 2 hours, titled with the first line of your caption.

A skipped post shows the reason on your dashboard and still goes to your other destinations. See long videos for how Post Once tells short from long.

How your caption carries over

The video’s description becomes the caption. A video with no description uses its title instead. Private and unlisted videos are not picked up, and neither are community posts.

Facebook gets the caption up to 2,200 characters. A long video is titled with the first line of the caption.

Choose what goes to Facebook

On the Bridge page, the Facebook row has two settings.

• What to post has one switch here, Videos, since videos are all that go from YouTube to Facebook. Turning it off pauses Facebook.
• Rewrite caption changes the caption for Facebook only: Remove comment, DM and link in bio prompts, Remove hashtags and mentions, Rewrite with AI to suit Facebook, and Add your own text at the start or end. Each one is off until you turn it on.

Check that it works

Post something on YouTube as usual. Within about five minutes it shows up under Your posts on the dashboard (press Check now to look straight away), then goes to Facebook. Each post shows where it went, what was skipped and why.

If a repost fails, Post Once tries again up to 5 times over about half an hour. If it still fails, you get an email, and Retry sends it again to just the accounts it missed. See a post did not repost.

Only posts published after you connect are reposted on their own. Older ones are listed in Your posts, where you can send any of them by hand.