Allow users to only submit once

[Robert_Petitto]

Check out this post:

How To: Build a Gamified Glide App (updated 10/6/20)

Part 3: Challenges and Gold! Create challenges for your users to complete, award them in-app currency AND/OR XP, create an admin dashboard to view/approve challenges. [Gamify your Glide App #3: Challenges, Gold and Admin Dashboard]