Each fulfillment in Shopify can be updated by WeSupply to indicate whether it has been delivered or is out for delivery.
Other apps like Okendo and others who rely on that data can use your shipping and delivery information. Unless you have special fulfillment operations or data where you don't want this data inserted, we strongly recommend using the WeSupply fulfillment event to further build email workflows such as purchase reviews, product reviews, CSAT, NPS, etc.
Even if the carrier is not one that Shopify typically supports, WeSupply will mark shipments as Delivered in Shopify. In order to decide who is qualified for reviews, Okendo reads this fulfillment event. More instructions to configure the sequence can be found on Okendo's website here.
Once activated, Okendo users can set their Eligibility Sequence to use the provided event from Shopify as seen above. To ensure that the consumer receives the product, you can still add a delay after delivery so they can check it out.