Merge pull request #2544 from segmentio/tawe-segment-patch-ga_ua

Add note on track category used for UA

Author: pwseg

src/connections/destinations/catalog/google-analytics/index.md

@@ -195,6 +195,8 @@ For this example these event attributes are sent to Google Universal Analytics:
 | **Event Category** | All       |
 | **Event Action**   | Logged In |
 
+> info ""
+> **Note**: In device-mode only, if you pass `category` to the [`page`](/docs/connections/destinations/catalog/google-analytics/#page-and-screen) call, Segment will use the `category` from `page` instead of setting default **Event Category** to `All`.
 
 And another Track call example, this time with all Google Universal Analytics event parameters: