At some point an artist will pull out late, fail to show, or you'll have to cancel a night yourself. It's one of the least fun parts of promoting, and how you handle it says everything about you — to your crowd, to the artists, and to the venues who'll hear about it. The goal is to protect yourself before it happens and then manage the fallout calmly, because panicking or going quiet only makes it worse.

Most of the protection happens before the night. Get your bookings in writing, even something simple, with the fee, the date, the set time and what happens if either side pulls out — a deposit or a cancellation clause makes people take the commitment seriously. Keep a backup DJ or two in mind for your bigger bookings so a dropout isn't a disaster. And be clear with ticket buyers from the start about your refund policy, including the standard line that lineups are subject to change, so a single artist cancelling doesn't automatically mean refunds across the board.

When something does go wrong, communicate fast and honestly. At grassroots level people are usually buying into the night itself — the vibe, the space, the crowd — not one specific name, so if a local act drops out, a solid replacement keeps the night whole and refunds generally aren't expected. Just sort the swap quickly and don't make a big deal of it.

Where it matters more is if the thing people actually came for changes — the whole concept shifts, or several acts pull out at once — in which case offering refunds to anyone who asks is the fair, reputation-protecting move, even when you're not strictly obliged. And if you have to cancel entirely, tell people as early as you can and refund promptly; dragging your feet on people's money is how you kill a brand. Keep a cool head, be upfront, do right by the people who trusted you with a ticket, and most will come back. Handle it badly and that's the thing they'll remember about your night.