Erik ten Hag's side are looking to improve on last season's runners-up finish in the competition but have to wait to get our 2023/24 involvement under way.
Kick-off against the League Two side is scheduled for 20:15 GMT, over 24 hours after the other 31 round-three ties have been staged.
Here's everything you need to know ahead of United's first FA Cup away game in almost three years...
HOW CAN I WATCH?
ITV Sport is broadcasting the game live in the UK, with their build-up beginning from 19:30 GMT.