31-12-2020 2:00 PM
eBay sends the code to the buyer's phone and they're supposed to give it to the seller to show item has been collected. But it's only for the app. You should still be able to mark as dispatched using a PC or laptop. On My eBay via More Actions, right of item on your sold page. Or on seller hub page click on the item, then top left > Mark as Dispatched.
ebay have introduced these codes without actually telling anyone about them!
if you are the seller the buyer is supposed to show you the code on their phone,
you can bypass the need for a code by using the full site, not the app
use the drop down menu next to the item and mark it as paid and dispatched