I created this product on the 26th of May and it is still not indexed: https://www.zazzle.com/chiropractor_spine_logo_teal_and_gold_appointment_business_card-256463832418024217
whereas this one I created on the 27th of May has just been indexed:
I still can’t understand how the order of product indexation works and if there are priorities, I’d really like to know how they work.