When a post can't be published it is marked Failed in your posts list and calendar, and everyone in the workspace gets a notification in the bell at the top of the app. Open the post to see the reason. The most common causes:
Your connection expired
Access tokens for any connected network (Instagram, Facebook, Threads, TikTok, LinkedIn, Telegram) can expire or get revoked - for example after a password change on that network, or from revoking Flomixy's access in the network's own settings. When that happens, the post page shows a Reconnect account alert. Click it to restore the connection - see Account connection problems for what reconnecting looks like on each network.
While a connection is down, your scheduled posts are paused, not lost - they stay scheduled and publish automatically within a minute of reconnecting (or at their scheduled time if it's still in the future).
Video processing problems
Reels are encoded by Instagram after upload, which can take a couple of minutes. If Instagram rejects the video (unsupported codec, too long, wrong aspect ratio), the post fails - check the video meets Instagram's Reels requirements and try again.
Network-side limits
Every network enforces its own rules: posts-per-day, media size limits, and account restrictions. If your account is temporarily restricted by the network itself, publishing fails even though everything on our side is fine.
Daily posting limit reached
If a post fails with "Publishing quota exceeded" or "Daily posting limit reached," you've hit that network's limit on how many posts an account can publish within a rolling 24-hour window (Instagram, Threads and TikTok have this limit; Facebook doesn't). This isn't something Flomixy controls. When this happens, the post shows a badge with the estimated time your account's limit resets, so you know when it's safe to try again. Because the limit is still in effect right after the failure, you won't see a Retry button on this post - wait until the reset time shown, then reschedule it or duplicate it to a later time. More detail: Understanding your daily posting limits.
How to retry
Open the failed post, fix what's needed (reconnect, replace media), and schedule or publish it again.