How to prevent users to see a same data?

[Darren_Murphy]

This is a concurrency issue, and it’s a known issue with Glide. Moving to Glide tables will minimise the effect, but it won’t solve the problem completely.

To fully solve it, you essentially need to introduce a 3rd party to act as a proxy/arbitrator.

I described an approach below, using Integromat:

Row Numbers

I do believe that if you had just a single GSheet, then you could solve your problem. I’m not sure what your current user journey looks like, but it would need to be a two step process, with a short delay in between each step. Here is what I’m envisaging: When a user taps a button to claim a collectable, you put them into a “holding pattern” The button that they tap sends a webhook to Integromat with two values: the UserID, and the ID (RowID?) of the item they are attempting to claim. Integrom…