Recording a duty as done
Open a duty and choose Record done. Give the date it was done, and if you like a note and a link to the evidence: the minutes, the policy, the certificate. Each one is kept in the duty's history with who recorded it, so next year's board can see what was done and when.
Recorded the wrong date? Remove it from the history and record it again.
Who looks after it lets the board give each duty to somebody on the board. Some show who it usually falls to, the Chair or the Treasurer, until somebody is chosen.