What reaches both
3 kinds of post reach both Facebook and Instagram:
| You upload | On Facebook | On Instagram |
|---|---|---|
| Reel / Short video — one vertical video | Published as a Facebook Reel. | Published as an Instagram Reel. |
| Social photo post — a photo with a caption | Posted as a photo on your Facebook Page. | Posted as a photo on your Instagram feed. |
| Product — a product with a photo and price | Promo photo posted to your Facebook Page. | Promo photo posted to Instagram. |
Limits worth knowing first
- Facebook: Posts go to a Facebook Page, never a personal profile.
- Instagram: Publishing goes through a Facebook Page — an Instagram professional account has to be linked to one. Reels are not live until Instagram finishes transcoding, which can take several minutes.
Connecting the two accounts
- Facebook connects with one click, through its own login screen.
- Instagram connects with one click, through its own login screen.
Both connect once and stay connected; if a network expires its own token, the account is paused and you are emailed to reconnect it rather than left with posts silently failing.
How it works
- Connect Facebook and Instagram in Integrations.
- Upload your vertical video or photo or product once and pick both as targets.
- Let the AI write a caption per network, or write your own.
- Publish now, or schedule it. Each delivery is tracked separately.
Frequently asked questions
Can I post to Facebook and Instagram at the same time?
Yes. reel / short video and social photo post and product posts reach both Facebook and Instagram from a single upload — you choose both as targets and publish once.
Does the caption have to be identical on Facebook and Instagram?
No. SOSPosting writes a separate, native caption for each network — the length, tone and hashtags that suit Facebook are not the ones that suit Instagram. You can edit either before publishing, or write both yourself.
What happens if one of them fails?
Each network is delivered independently, so one failing does not block the other. A delivery that fails for good is refunded automatically — you are not charged tokens for a post that never went out.
See every combination on the cross-posting index, or read the setup guides for Facebook and Instagram.