Use funnels to track user activity

This example uses funnels to view all events that a group of actors or a particular actor took after an initial event. One real-world use case that we've solved using this strategy is understanding all of the events a new user generates within their first week using a service.

Start by creating a derived column that always returns 1. We named this column Always1.

long always1() {
  return 1;
}

Next, create a funnel for the actor you want to understand. Specify the following conditions:

1. Step 1: Set the entry conditions for collecting events. For example, if you want to analyze the events a user takes after creating their account, set the filter to event_type='account_create'.
2. Step 2: Set this step to filter to Always1 "is one of" 0. Since Always1 will always be 1, this requirement will never be fulfilled.
3. Funnel Settings: Set All events happen within to the period of time for which you want to collect events. 

Save the funnel. In the Explorer, set the Filter to <yourfunnel>_current_state = 1 to filter to all events that happened during the funnel period. 

Experiment with additional filters to understand the actions of certain groups of your users within the period you specified.