Since I moved to Shopify, I'm seeing orders through the source / mediums shop.app / referral and shop_app / (not set) on my Google Analytics report.
Does anybody know where those source / mediums come from?
I started seeing the same thing from 2 September onwards. All users referred by this source are repeat visitors. I wasn't able to track where these come from.
After starting this topic I noticed this is not an SDK issue and opened another chat on the Marketing & Analytics channel.
Please find a solution here.