Auto Post Instagram Stories to Facebook

You can auto post Instagram Stories to Facebook, but it runs through a separate toggle from the one that controls your regular feed posts. This is the single most common cause of the "why isn't this sharing" confusion: people turn on sharing for feed posts, assume Stories are included automatically, and then wonder why Stories never show up on Facebook.
Where the Stories Toggle Actually Lives
From the Instagram app: open your profile, tap the menu icon in the top right, and go to Settings and Privacy. Scroll to Account Center and tap into it, then find Sharing across profiles. Inside that section, feed posts, Stories, and Reels each have their own independent toggle. Turning on posts does not turn on Stories, and turning on Stories does not turn on Reels; each one needs to be switched on individually for content to flow to Facebook automatically.
Why the Separation Exists
Stories disappear after 24 hours and behave differently from a permanent feed post, so treating them as a separate sharing decision makes sense once you think about it: someone might want their curated feed posts to always cross-post to Facebook while keeping casual, disposable Stories content Instagram-only, or the reverse. The separate toggle gives you that choice instead of an all-or-nothing setting.
Fixing "Instagram Story Not Showing on Facebook"
If you've confirmed the Stories toggle is on and content still isn't appearing on Facebook, check a few things: that your Facebook and Instagram accounts are still properly linked in Account Center (accounts occasionally get disconnected after a password change or security review), that the Instagram account is a Business or Creator account rather than Personal, and that you have a Facebook Page (not just a personal profile) connected, since personal Facebook profiles don't support the same automatic Story-sharing behavior as Pages.
Turning It Off
To disable it, go back to the same Sharing across profiles section in Account Center and toggle off Your Instagram Story specifically, leaving your feed post and Reels settings untouched if you want those to keep sharing.
A Note on How Stories Actually Look on Facebook
Even with the toggle on, a Story built at Instagram's standard vertical dimensions generally carries over cleanly to Facebook Stories, since both formats match. Interactive elements are the exception: stickers like polls, quizzes, and countdowns are Instagram-native and typically don't function the same way, or at all, once the Story shows up on Facebook's side. If a Story leans heavily on an interactive sticker, expect the Facebook version to look a little flatter than the original.
If You Want More Control Than a Toggle Gives You
The built-in toggle is genuinely convenient, but it's all-or-nothing: every Story goes to Facebook, or none do. If you want to choose which content goes where on a case-by-case basis, or adapt the format (an Instagram Story crop doesn't always suit a Facebook feed the same way), Posted Once lets you schedule content to Facebook and Instagram separately, with the option to customize each platform's version instead of relying on an automatic mirror. Resize assets to fit each platform's dimensions with the social media image resizer. Start free →.
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