Today, September 22nd only, place a mobile order for any Starbucks Grande (or larger) Handcrafted Beverage through the Starbucks app and get a FREE drink coupon to use on September 25th-26th. No promo code is needed for this deal. The free drink coupon will automatically be loaded to your Starbucks account on September 25th and it is valued up to $10.

Open your Starbucks app, click on Inbox in the top left and view your messages
Look for the message titled ‘Enjoy a free toast to fall’ and click on ‘see more’
Click ‘Order Now’
Choose a Starbucks location and click ‘Order Here’
Choose your favorite handcrafted beverage (be sure it is size Grande or larger!) and click ‘Add to order’
Click ‘Checkout’ and place your order
After purchasing, check your Starbucks account on September 25th as your FREE beverage coupon should automatically be loaded into your account and will expire on September 26th.

https://www.starbucks.com/rewards/mobile-apps