If an order was delivered but Easync (or eBay) still doesn't show "Delivered" — for example the tracking page won't load, or it's marked delivered on Amazon but not on eBay — paste the Easync order link into the chat and ask for it to be marked as delivered.
my.easync.io/stores/.../orders/...
It helps to include the store name and, if you have them, the Easync tracking number and the original supplier tracking number, but the order link alone is enough for the team to act.
Support updates the status on the backend and support team confirms with "The status of this order has been updated."
Keep in mind the status won't flip on eBay instantly: after the Easync update it can take up to 24 hours to sync through to the marketplace, so a short delay before "Delivered" appears on eBay is expected.