Before you start
- The Funnel tab appears next to Explore only when the analysis area defines events, event times and sessions, and its event data comes from a BigQuery table. If you do not see the tab, the area does not support funnels yet. See Semantic Models.
- To limit a funnel to a group of people or devices, create a cohort first. See Cohorts.
How the funnel counts
A funnel counts sessions. A session reaches a step when it has the step's event after it already had every earlier step, in order, within the same session. Steps do not have to happen back to back: other events in between are fine. The page states this under the title as "same session, in order".
Build a funnel
- Go to Analyze and click the Funnel tab.
- Under Steps, type or pick the Event for step 1, for example
view_item. The list offers event names Lens has seen. Optionally give the step a Name, such as "Viewed product". - Do the same for step 2. Click Add step for more, up to 10. Use the up arrow to move a step earlier; the × removes a step when there are more than two.
- Optional: under a step, click Add a condition on this event to narrow it, for example
page_pathcontains/checkout. A condition uses is, is not, contains, does not contain or starts with. - Optional: under Population, pick a Saved cohort to count only sessions of the people or devices in it, and click Add a session condition to keep only sessions with a given value, such as a device type. Without either, the funnel counts All sessions.
- Pick the Date range. A funnel reads at most 92 days; longer ranges may be refused for cost.
- Click Show Funnel.
You can also ask for a funnel in Ask Lens by naming the steps in order, for example "funnel from view_item to add_to_cart to purchase last week". The question and how Lens read it are shown above the result.
Read the result
| Shown | Meaning |
|---|---|
| Count per step | Sessions that reached that step, with the share of step 1 |
| N% continued | Share of the previous step's sessions that reached this one |
| N dropped off | Sessions that reached the previous step but not this one, with the rate |
If you change the steps after showing the funnel, a notice says the analysis has changed. Click Show Funnel again to update the numbers.
Share it
Click Copy Link at the top of the result. The link opens the same funnel for anyone at your company with Lens access, with the data as of when they open it. Saving a funnel is not available yet, so the link is how you keep it.
Troubleshooting
| You see | What to do |
|---|---|
| No Funnel tab | The analysis area does not support funnels. Ask your Lens admin. |
| "No saved cohorts fit this model yet" | No cohort matches this analysis area. Click Add one in Cohorts to create one. |
| "The saved cohort in this funnel is no longer available" | The cohort was deleted or no longer fits this area. Pick another cohort or none. |
| "This model marks no field as describing a whole session" | Session conditions are not available for this area. Every session is included. |