An artist says they cannot open their tickets. They still have to complete their contact details, or answer required questions. Their row on the guest list shows what is missing.
A guest did not receive their mail. Check the envelope in the guest list: grey means not sent yet, red means no email address. Their briefing link works regardless: you can always copy and send it yourself.
The scanner says "not valid today". The pass is for another day or session, or this scanner is not allowed to scan this day or type. You can check both in Settings → Operations → Scanners.
Someone is on the list twice for the same day. That happens when they hold two accreditations, for example their own pass plus a +1, or a pass plus a parking pass. The list tells you which of the two it is.
A colleague cannot find the event. They need to be added under Settings → Team, and they need their own ShowIQ account.
Can I reuse an event? Yes. On New event, choose Copy an event, pick the event and tick what to take along: accreditation types, briefings, guest form, crew jobs, production and more, and optionally its vendors, relations, team and crew people. You then only fill in the new dates and the line-up. Dates, deadlines, guests and artists are never copied.
Can I change something during the event? Yes. Everything is live: an approval, an extra pass or a new hand-out is immediately visible on the door screens and in briefings.