You’ll be provided with an email or notification when your transfer is sent.  Make sure you keep this notification in a safe place, as you will need the transfer confirmation number or tracking number if there’s an issue with your funds not arriving at their destination.  Contact customer service if there is such an issue.  Many transfer services provide a tracking tool as part of their online platform or mobile app, so once you log in, you can enter your tracking number and find out exactly where your funds are.