That option does not show for me, may be my region, I’m based in NZ.lol, had to use ChatGPT to find that setting in iOS 26:
📌 How to Enable Package Tracking in iOS 26 (Developer Beta)
- Open the Settings app
- Go to Wallet & Apple Pay → Apple Pay Defaults → Order Tracking
- Toggle “Orders Found in Mail” to ON
- (Optional) You can still toggle off “Apple Pay Purchases” if you only want email‑based tracking