Why GA4 Landing Page Reports Shows (not set)

Update time: June 23, 2025

Issue

Landing Page shows (not set), such as:

Reason

Missing page_view event in the session: probably the session has timed out, user visits the website again and triggers an event, but does not trigger a page_view event, so there is no landing page on the second visit/session.

We can verify this in the Explore by getting the data as follows：

• Raw: Landing Page
• Columns: Event Name
• Values: Active Users、New Users、Returning Users，Event
• Fileters: Landing Page contains not set

We can see that there is no page_view event in the Event Name in the report, which means that the page_view event is missing in the session.

Solution

This is caused by the user’s behavior flow, and there is nothing we can do about it.