Ever wonder what BNS and BNR treasuries are? They are treasuries created by teams (or individuals) in order to promote and sell the members' shop items, though you do not need to be a team member to participate. The idea is to buy something from one of the featured shops in order to be featured in the treasury and then have someone buy something from your shop.
BNS stands for buy and stay, meaning that even if someone buys from your shop you stay featured in the treasury until the round ends, either after a certain number of sales or a time period. Once the BNS closes, all the people who shopped will be featured in the next treasury. (Some are not consecutive, but most are.) If you do not sell, some curators will carry over your shop one or two more rounds.
BNR stands for buy and replace, meaning that you immediately replace the shop you bought from in the treasury. If you are the last one to buy in before the round closes, you usually are featured in the next round since your shop didn't have much feature time. There are also PNRs, promote and replace. Instead of buying in, you promote the featured item.
Be sure to read the rules before buying in! Every curator does it differently.
Some you need to call out the shop you want to buy from and wait for the
curator's okay (usually for BNRs so that two people don't buy from the
same shop since they both can't replace one shop). Some have a minimum
amount of money you have to spend to get in, some don't. Some are open
for a long time, some for a short time. Most have ways you can earn free
spots: being the top promoter, being chosen in a random drawing,
winning a trivia game. Also, if you spend a lot of money or buy from
certain shops you get featured in more rounds.
you buy, you comment with the shop you bought from, the transaction
link(s), and the amount spent after coupon, before shipping (ac/bs). Some curators will ask you what item you
want featured, some choose it themselves. It doesn't matter, though,
because you can buy any item from the featured shops, not just the featured items.
BNS treasuries are great opportunities for multiple sales since you stay in the treasury the entire time. BNR treasuries get more views since the items are constantly changing. Both are great forms of advertising. Even if you don't sell anything, you get more views and hearts. The advantage of BNS/BNRs over other advertising is that you get something for your money, which is like free advertising if you were going to buy an item anyway. Happened to me twice--I was going to buy something from a shop, happened to find them in a BNS later, and then bought it so I could be featured. The other time, I found an item I wanted to buy at a lower price in a BNS.
Also, the featured shops are encouraged to post coupon codes, so you will usually get good discounts. The best time to participate is during holidays and when you need to get a birthday gift. Then you can shop for what you want at a discount and also get featured, a win-win situation. That's how I got all my Mother's Day gifts and two sales!
The best thing about these treasuries is everyone is super friendly and supportive. You make friends and return customers and promoters. Try it out to for yourself. To find a BNS or BNR, seach for "open bns/bnr" under Treasuries or "bns/bnr" under Teams.
If you have any more questions, let me know!