This experiment started right after users of a trading app received trade order expiry notification (for a security trading app). In the control, after clicking the notifications, users would have to navigate to the trade themselves. In the variation, 1) an additional step was added which informed what happened (an order was not place and expired) and 2) they were automatically send to the order page. Impact on orders placed was measured.

In this a/b test, the headline was changed to reflect pricing information (informing that trades are starting at $3). Impact on progression and signups was measured.