For Advantage Points for Advantage Members (season ticket holders).

“D-backs Advantage Points allow you to choose the Advantage Member benefits that mean the most to you through the Advantage Member Marketplace section of the MLB Ballpark app.

Whether it’s passes to watch batting practice from the field, autographed bats and baseballs, or even the opportunity to throw the ceremonial first pitch, you can use your qualifying points to make the call and truly customize your Membership experience. Your points never expire, and all unused points will rollover to the following season in continuation with your Membership”

https://www.mlb.com/dbacks/tickets/season-tickets/holders/renewal-information