# CheckStation guides and demonstrations

Learn CheckStation tasks, handle common problems and practise with checked demonstrations using sample data.

Source: https://help.smartfact.ai/checkstation

Read a guide below, or use the help page to ask a general product question. Interactive demonstrations run on desktop and laptop computers. Written instructions work on any device.

## Guides and help pages

- [Record a failed check and keep the unit held](https://help.smartfact.ai/checkstation/guides/checkstation-operator-failed-check): A valid failed reading is evidence, not an entry error. Record the remaining checks and retain the hold.
- [Inspect and complete one bracket](https://help.smartfact.ai/checkstation/guides/checkstation-operator-inspect): Acquire a station, scan a unit, correct an invalid entry and complete its two approved checks.
- [Handle an unknown unit](https://help.smartfact.ai/checkstation/guides/checkstation-operator-unknown-unit): Stop when the scanned unit cannot be found, without creating an inspection.
- [Review a failure and authorise a full retest](https://help.smartfact.ai/checkstation/guides/checkstation-office-authorise-retest): Inspect the original evidence, then retain a reason for a complete new inspection.
- [Record a supported rejection](https://help.smartfact.ai/checkstation/guides/checkstation-office-reject-unit): Retain a rejection decision without deleting the failed inspection.