Please find a three part explainer video series, that will tell you everything you need to know about Product Collection. FYI : If you can't find product collection feature on your panel, that's cause you are not upgraded to an APN 2.0, Reach out to support to get yourself upgraded, if not already.

How to create a Product Collection/Product recommendation template for APN? Part (1/3) (15 Mins)How to Pull in a Product Collection template in a Journey and Deploy it? Part (2/3) (5 Mins)How to demo and debug a Product collection Notification? Part (3/3) (5 Mins)

If you are still a documentation person, here you go!