Storing Event Data and Using It in a Decision Split - Canvas

luis123her​ you are right, Canvas by itself doesn't store values across events, so doing cumulative logic like “if total purchases > $50 across multiple events” can be tricky. But it's definitely doable with a little workaround using custom attributes and webhooks (or Connected Content).

Instead,

Send a custom event when a user makes a purchase, and include the purchase_amount in the event properties (Looks like you are already doing it)

Track cumulative total by storing it as a custom user attribute (e.g., cumulative purchase total). 
Use a webhook or Braze’s Connected Content to:

• Grab the user’s current cumulative_purchase_total
• Add the new purchase_amount
• Update that total on the user profile using Braze’s API
• In terms of the Canvas - Trigger it based on purchase made event.

Add a Decision Split right after that checks the updated cumulative purchase total.
If it’s >= 50, send them down the “reward” path (or whatever).
If not, just continue the normal journey.