id we gave you when you created it.
Endpoint
id (a long ID like 3f6b2e1a-...) in the URL, not your own wallet_ref. You get a 404 for a wallet on another account, and also for anything that isn’t a valid id, so sending a wallet_ref here by mistake gives you a 404 too.
To look a wallet up by your own wallet_ref, use get a wallet by reference.

