|Event creation||Audience triggers|
|User, session or event|
Up to 50 modifications to existing events and up to 50 custom events.
Collection limits also apply (e.g. 100K events per user per day).
|Up to 20 audience triggers per property (from the limit of up to 100 audiences per property)|
|When it is calculated||Client side (before data is sent to Google Analytics)||During data processing (after data is sent to Google Analytics) when users become part of and/or refresh their audience membership|
|Shows up in Chrome DevTools Network tab||Yes, because it's calculated on the client side||No, because it's calculated during data processing (not on the client side)|
|gtag.js/Firebase SDK dependency||Yes||No (can work using Measurement Protocol / Data import)|