Social media mistakes by platform, from Facebook to TikTok

Key takeaways

Social media mistakes by platform follow one pattern: using a platform the way another one works. Facebook rewards local community and groups, Instagram rewards strong visuals and saves, LinkedIn rewards people over pages, TikTok rewards a fast hook, and YouTube rewards search. Copying one post to all of them suits none.

• Facebook: posting as a page but ignoring local groups and reviews.
• Instagram: a pretty grid with no bio offer and no Stories.
• LinkedIn: company-page updates when people's profiles get the reach.
• TikTok: slow openings that lose viewers in the first 2 seconds.
• YouTube: videos with titles nobody searches for.

What are the most common Facebook mistakes?

The most common Facebook mistakes are treating the page as a noticeboard, ignoring local groups where customers ask for recommendations, leaving reviews and messages unanswered, and boosting posts with no objective. Facebook still works well for local and older audiences when the page is active in conversations.

• The most common social media marketing mistakes small businesses make
• Facebook business page mistakes small firms make

What are the most common Instagram mistakes?

The most common Instagram mistakes are a bio that does not say what you do or where, a link to the home page, polished posts with no caption reason to act, and ignoring Stories and direct messages. Instagram buyers often message before buying, so a slow inbox costs sales.

• Instagram bio mistakes that stop people enquiring
• Instagram strategy for UK small businesses

What are the most common LinkedIn mistakes?

The most common LinkedIn mistakes are posting only from the company page, sharing news about the firm rather than insight for the buyer, pitching in connection requests and running ads to audiences too small or too broad. On LinkedIn, posts from people usually reach far more than posts from pages.

• LinkedIn company page mistakes B2B firms make
• LinkedIn ads mistakes that burn B2B budgets

What are the most common TikTok mistakes?

The most common TikTok mistakes are slow openings, repurposed landscape video, chasing trends that have nothing to do with the business and using music that is not cleared for business accounts. TikTok shows videos to people based on how they watch, so the first two seconds decide most of the reach.

• TikTok ads mistakes small businesses make
• Using popular music on business social media

What are the most common YouTube and X mistakes?

On YouTube, the common mistake is publishing videos with titles and thumbnails nobody would search for or click, when YouTube behaves partly like a search engine. On X (formerly Twitter), it is broadcasting links without replying to anyone, on a platform built around conversation. Both are worth it only if your buyers use them.

• Being on the wrong social media platform for your buyers

Should you be on every platform?

No. Being on every platform is itself a mistake for most small businesses, because each platform needs its own style and its own replies. One main platform done well, plus a tidy presence where buyers might check you, beats five half-run accounts.

• Too many social media channels? How to cut back safely

How do you spot a platform mismatch in your own posts?

Spot a platform mismatch by comparing the same post across platforms after a week. If one version consistently does far worse, it was probably not adapted to that platform: the shape, opening, length or hashtags suit somewhere else. Also check that the people engaging on each platform look like your buyers.

• Landscape video on TikTok, Reels or Shorts.
• Hashtag blocks on LinkedIn or Facebook.
• Bare links on Facebook with no comment.
• 'Link in bio' on a platform where links work in posts.

What does this look like in practice?

A pattern we see: one landscape video posted unchanged to Facebook, Instagram, LinkedIn and TikTok on the same day. It does reasonably on Facebook and poorly everywhere else. Recutting it vertically with a new opening for each platform takes an extra 30 minutes and usually does better than four uploads of the same file.

• See client work
• Social Media Marketing for UK businesses

Platform checklist

• Pick one main platform your buyers use most.
• Learn what that platform rewards before posting.
• Adapt, do not copy, posts for each platform.
• Check music and formats suit a business account.
• Review each platform's results separately.

• Why small businesses fail at social media marketing
• Social media mistakes examples: what they look like

Next step

List the platforms you are on and how many enquiries each produced last quarter. Any platform with none is a candidate to pause.