Cheques
Finance → Cheques tracks the cheques you received from customers and the ones you issued to suppliers, by due date.
This article is still being written: it explains what the screen is for, and its steps are not written yet.
The Cheques page tracks every cheque received from a customer and every cheque issued to a supplier, ordered by due date. From there you move a cheque through its steps: from the safe, to deposit at the bank, to cleared, or record it as bounced if it comes back.
You'll find it in the sidebar under Finance → Cheques. Owners and managers work on it, and so can anyone given a role with the cheque management permission. The company sets how it handles cheques in the Cheques topic of Configuration Studio.