TikTok

TikTok integrates through the official Content Posting API. Posts go through TikTok's normal review pipeline — same as if you'd uploaded in-app — and appear in your followers' feeds when TikTok finishes scanning the video.

What you can post

Caption rules

• Max length: 2,200 characters (TikTok officially says 4,000 but the API caps lower)
• Hashtags counted toward the character limit
• @-mentions work for any public TikTok handle

Video specs

• Format: MP4
• Codec: H.264; H.265 mostly works but inconsistent
• Resolution: Up to 1080×1920 (vertical) recommended
• Frame rate: 23-60 FPS
• Bit rate: Up to 12 Mbps; higher gets re-encoded harder
• Length: 3 sec minimum, 600 sec maximum (the "5 min" in TikTok's marketing means 5 minutes for in-app uploads; the API allows 10)
• File size: 287 MB max

If your video is bigger than ~150 MB we recommend re-exporting at a lower bitrate. The bigger the file, the longer TikTok's review queue takes — sometimes the difference between "live in 30 seconds" and "live in 20 minutes."

Per-post settings we expose

• Privacy — Public, Friends, Private. Defaults to Public.
• Allow comments — toggle.
• Allow Duet — toggle. Note: TikTok forces this off for accounts under 1,000 followers regardless of API setting.
• Allow Stitch — toggle. Same follower-count rule.
• Disclose content — required when the video promotes a brand or contains AI-generated content. We surface this as a toggle in the editor; not setting it correctly can get the video shadow-banned.

Photo carousel mode

TikTok's photo carousel (sometimes called "slideshow") takes 2-35 images and turns them into a swipeable post with TikTok's default sound or your selected music. The API caveats:

• You can't set a custom audio track per slide. TikTok adds the default photo-slideshow track. To override, post the video natively first then convert in-app (rare workflow).
• Aspect ratio: TikTok will display whatever you upload at the aspect of the first photo, letterboxing the rest. Match aspect ratios for clean output — our Carousel Splitter tool helps if you want square slides.

TikTok's review queue

Every post — through the API or the app — sits in a review queue that scans for ad content, copyrighted music, and rule violations. Most posts clear in under a minute. Some take 10-15 minutes. We poll the API every 30 seconds and update the post status when it's live.

If a post is "Under review" for more than an hour, that usually means TikTok flagged it for human review. The post stays in your account but isn't distributed until they finish; sometimes they never finish and the video just doesn't get reach. This is on TikTok's side; we can't do anything other than show you the status.

Common rejection reasons

• video_pull_failed — TikTok couldn't download the video from our staging URL. Usually transient; we auto-retry.
• spam_risk_user_banned_from_posting — your TikTok account is rate-limited or shadow-banned. Wait 24 hours and try again.
• unaudited_client_can_only_post_to_private_accounts — you've authenticated with a TikTok account that hasn't completed TikTok's "Posting" verification. Open the TikTok app, complete the "Add a date of birth" / phone-number flow, reconnect.