Customers not triggering "started check out"

Hi all,

We have created an abandoned cart flow, with the trigger “when someone starts checkout” and the flow filters “placed order zero times since starting this flow” and “has not been in the flow last 2 days”. We have noticed significantly less than expected profiles oging through this flow.

To test this I created a segment of people who have placed and order but not started checkout, and there was 300 profiles in the last 30 days.

One issue seems to be a large percentage of our customers using pay pal express that are not triggering started checkout.

Adiotnally, some profiles don’t seem to triger the started checkout triger, even though they have triggered active on site, and the page they are on is checkout and pay.

Is there a way to pick up these profiles that are going through paypal express? And what could be the issue with customers who don’t trigger started checkout despite being active on the checkout and pay page.

Thanks in advance.