Part 6 of 7 of the free pop-up markets and makers sales guide from The Gallery on Montana. The most common pop-up market mistakes, from no booth map to promoting only on your own account, and how a good welcome table fixes half of them.
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Most market problems come from small things nobody wrote down. Here are the ones that come up most, grouped by when they bite, with the fix for each.
The fix for all four is the same: write the vendor sheet, the budget and the policies before you open applications, and do not change them after money comes in.
Two more that catch first-time organizers: forgetting trash cans, which leaves a lawn full of cups by noon, and not having change or a backup card reader for your own sales at the welcome table. Put three or four lined trash cans along the lanes and one by the food vendor, and empty them at midday.

Good signs pay off all day. Put one at the street so drivers see it, one at the entrance pointing to the welcome table and a small label at every booth with the vendor's name and social handle. Shoppers who can find a vendor later often buy later too. A yard sign with the market name, hours and an arrow costs little and does more than a week of posts for drive-by traffic.
Every venue has rules, and it is your job to pass them on. Put the venue rules in the vendor sheet, in plain words, and repeat them in the acceptance email. Food vendors should confirm their own permits. If a venue does not allow alcohol sales, say so clearly, so nobody plans a product they cannot sell.
The welcome table does more work than people expect, and it fixes half of these mistakes. Put a printed vendor list on it, a sign-up sheet for your next market, a tally for where shoppers heard about you and a short note on payment options. Staff it for the first two hours, when most first-time shoppers arrive with questions.

Tip: Grow your list. A sign-up sheet at the welcome table turns one market into a series. Those names are your first shoppers next time.
Feedback is the fastest way to improve your second market. Ask every vendor one question at close, then send a three question form the next day: how were sales compared with other markets, what should change, and would you come back. Read every answer, fix the top two problems and tell vendors what you changed. That alone raises your return rate.
One organizer cannot check in vendors, staff the welcome table, post stories and answer every question at once. Recruit at least one helper for a market of 8 to 15 vendors and give them a written job list. Feed them, thank them and invite them back.
A good split for two people: one runs check in, the booth map and vendor questions; the other runs the welcome table, stories and the shopper tally. Swap at midday so both get a break. For bigger markets, add a third person to float between booths with water and spare supplies, and to cover breaks for solo vendors who cannot leave their table. Write each person's name next to their jobs on one page and tape it inside the welcome table box.
Want the full picture of how events run here? See the pop-up markets page.
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