It feels like they are intentionally making it complicated to figure out to avoid people actually setting hard limits. Vercel recently had a customer get charged 20k+ that posted on twitter. When Vercel employees mentioned this way of controlling it through a webhook, most people didn't even know about it. I feel like a hard limitbshould be easy to set in your projects settings and that it should have a default value.
I found the example I mentioned, it was from earlier this month.
Here is a link to the twitter post where someone got a 23k bill. In the thread you can find people confused about how this could have happened and why there are not hard limits to prevent situations like this.
https://twitter.com/michaelaubry/status/1757539928534315322?...
Here is a comment in the thread from their VP of product explaining how to set hard limits via a web hook. They said they would improve the documentation for it but some people replied saying they shouldn't need a web hook to set usage limits.
https://twitter.com/leeerob/status/1757960730865696892?t=mCD...
Even though I've been actively looking for this, I couldn't find it.
However, this solution ONLY provides notifications; it doesn't address the underlying problem. I could be sick for five days and not check my phone.
What I need—and, in my experience, what all larger companies require—is a method to halt consumption entirely, similar to Snowflake."