# Sync not working — checklist

Nothing arriving? Go through these points in order — they're sorted by frequency, and it's usually one of the first three.

## The checklist

1. **Initial sync not finished yet?** The first synchronisation can take a few minutes up to half an hour depending on the number of events — you'll get an email once it's done.
2. **Connection okay?** Does a calendar account in the dashboard say "Please reconnect"? Sync pauses until you do → [Connection expired](https://docs.kalender-sync.de/en/troubleshooting/reconnect/)
3. **Sync paused?** Check the status in the dashboard — including automatic pauses from [trial end or plan limits](https://docs.kalender-sync.de/en/account-billing/trial/) (recognisable by the lock icon).
4. **Invitation not accepted yet?** Status "Pending" means the receiving side hasn't accepted — nothing syncs yet. You can re-copy the invite link from the dashboard.
5. **Event outside the sync window?** Synced is only **3 months into the past; into the future depending on your plan: 6 months (Free & Basic) or 18 months (Professional)** → [Sync window](https://docs.kalender-sync.de/en/sync/sync-window/)
6. **Just patience needed?** Apple, KSuite and iCal feeds sync **every 5 minutes**, not instantly → [How fast is sync?](https://docs.kalender-sync.de/en/sync/how-it-works/#how-fast-is-sync)
7. **Looking at the right calendar?** Especially with several accounts: is the target really the calendar you're looking at? If a **new** calendar was created on accepting, it may need to be made visible in your calendar app first.
8. **All-day event?** Those are transferred **as free** by default — and don't block anything → [All-day events](https://docs.kalender-sync.de/en/sync/all-day-events/)

## Individual events missing or duplicated?

If sync generally runs but individual events misbehave → [Event missing, duplicated or late](https://docs.kalender-sync.de/en/troubleshooting/event-missing-or-duplicate/).

## Still nothing?

[Contact us](https://docs.kalender-sync.de/en/troubleshooting/contact-support/) — fastest with the affected sync, an example event (title + time) and since when the problem exists.