Both you and your clients can add addresses to their address book, but we would encourage you to ask your clients to do it for maximum accuracy. You can use 3 different methods to add addresses to the clients address book.
Drop a pin at your current location
Address lookup by starting to type the address and selecting from the list
What3Words
We then get you to confirm the exact location with a pin so that you are able to navigate straight to the exact location which is accurate to 1m2.