You can't schedule a LinkedIn poll in advance, not on LinkedIn itself and not through any third-party tool that uses LinkedIn's official API, because that API has no endpoint for creating a poll. LinkedIn's native scheduler (the clock icon next to Post) works for text, image, video, and document posts, but open the poll composer specifically and that clock icon is gone; the only button is Post now. The practical fix isn't scheduling the poll itself. It's scheduling everything around it.
Why LinkedIn's native scheduler skips polls
LinkedIn added native scheduling for ordinary posts years ago, and it now covers text, images, multi-image posts, video, and document carousels (the PDF-upload format covered in how to schedule a LinkedIn carousel PDF post). Polls never got the same treatment. SocialKit's breakdown of LinkedIn's API states plainly that LinkedIn's API exposes endpoints for scheduling standard text posts, images, videos, and document posts, but not polls; the poll-creation surface only exists inside LinkedIn's own live composer. That's a platform decision, not a bug any scheduler can route around. If the API has no door, a tool built on that API can't open one.
That also means a tool advertising scheduled LinkedIn polls is doing something other than calling LinkedIn's scheduling API for a poll object, because that object doesn't exist in the API. It's worth asking any vendor that claims the feature how it actually works before you rely on it for a launch moment you only get one shot at.
Poll mechanics to plan around
A handful of poll-specific rules matter more once you know you're publishing live rather than queuing ahead:
Publer's own help documentation confirms the two-week ceiling on poll duration and the no-media rule from the vendor side: its composer walks through adding poll options and a duration up to two weeks, with images, GIFs, and video explicitly unsupported on a poll post. Those are platform limits, not something a scheduler loosens by building a nicer interface around the same composer rules.
The real workaround: schedule around the poll, not the poll
Everything that isn't the poll object itself is an ordinary post, and ordinary posts schedule fine. That splits a poll launch into three pieces, only one of which has to happen live:
- A teaser post the day or hour before ("Poll going up at 9am tomorrow, what's your take?"). This is plain text, so it schedules natively or through any multi-platform scheduler.
- The poll itself, published live at the exact time you wanted it to go out, directly in LinkedIn's app or desktop composer.
- A results post once the poll closes, summarizing what people voted and linking back to the original. Also plain text, also schedulable ahead of time if you're comfortable setting the close time first.
That third step needs you to know the poll's close time before you write the results post, which is the one piece of friction this workaround doesn't remove: you still have to be present to publish the poll on schedule, because that one post can't be queued. For a Monday 9am poll with a one-week duration, that means being at your desk Monday 9am and again the following Monday to post results. The teaser on either side of it is the only part a calendar can carry for you.
Where this leaves a multi-platform scheduler
Synapse posts LinkedIn text, images, and video today, alongside eight other platforms, but it has no poll post-type, for the same reason every other scheduler doesn't: there's no API to build one against. A LinkedIn poll goes up through LinkedIn's own composer regardless of which tool runs the rest of your calendar. The gap isn't unique to LinkedIn, either. X's own composer has an equivalent hole for threads, covered in how to schedule a Twitter thread, where the fix is a similarly manual publish step wrapped in scheduled posts on either side.
What a scheduler is for here is everything else around the poll: the teaser, the results post, and the rest of your week's content across LinkedIn and your other connected accounts. The LinkedIn scheduler pricing guide covers what dedicated and multi-platform tools charge for LinkedIn coverage overall, and posting to all your social media at once covers the workflow for everything that does schedule cleanly: write once, pick your connected accounts, and let the queue run while you're the one person who still has to show up for the poll itself.
Can any tool actually schedule a LinkedIn poll?
Not through LinkedIn's official API. It has no poll-creation endpoint, so no scheduler built on that API, Synapse included, can queue a poll ahead of time. If a tool claims otherwise, ask how it publishes the poll at the scheduled moment before you rely on it.
How long can a LinkedIn poll run?
LinkedIn's native composer offers four durations: 1 day, 3 days, 1 week, or 2 weeks. You choose one when you create the poll, and it can't be changed once published.
Can I add an image to a LinkedIn poll?
No. LinkedIn's poll format doesn't support an attached image, video, or link in the same post. A poll is text and options only.
Can I edit a LinkedIn poll after I publish it?
No. Once a poll is live, you can't change the question, the options, or the duration. The only fix is deleting it and posting a new one.
What should I do instead of trying to schedule a LinkedIn poll?
Schedule the posts around it. Queue a teaser before the poll goes live and a results post for after it closes, and publish only the poll itself live, directly in LinkedIn's app or desktop composer, at the time you wanted it to go out.