First post. You have to search through target circle offers and can either search for starbucks or just filter by popular. Expires 9/21/20. Must have valid Target Circle account. If you’ve never used the circle before, just add the deal to your wallet than go to wallet option and it gives you a barcode which you have the barista scan. You can still pay with Starbucks card or app to earn stars.

Note: One minor inconvenience is that drinks and food purchased from Target Starbucks no longer apply to the star challenges through the app so no more double dipping. The terms and conditions on the challenges say "Purchases through Starbucks stores" which Target locations are not. When I found that out I was a bit disappointed but the 20% is well worth it.