@MartyE70 Welcome to the community. Yes you can have Square running on seperate mobile devices for different events. If you want to keep the sales seperate so you know which market sold what amount, you will need to make 2 different locations. If you are doing the same market every week, you could just name the locations what the market is called. If you do different markets throughout the year, you could name the location Like Market 1 and Market 2 or whatever you want them called.
One thing to check after you setup locations make sure you go into each location and turn on automatic deposit. I helped someone setup mu;tiple locations one time and the second location was set to manual deposit, after the fair they were freaking out because their money didn't get deposited.
Below is from Square on how to setup multiple locations.
Adding a new location
All location setup happens in Square Dashboard — you can't create locations from the POS app.
1 Go to Account & Settings > My Business > Locations
2 Select Create Location
3 Fill in the details:
• Location business name — appears on customer card statements and receipts
• Location nickname — internal use only, not customer-facing
• Address, phone, email, and social accounts
• Time zone and business hours
• Bank account for transfers
4 Optionally, match the item library from your existing location (Korie's Kloset Main) — this copies your current SKUs and catalog to the new location so you're not starting from scratch
5 Click Save
