United's second-string were due to face their Baggies counterparts at Whitley Park on Monday, 10th January for a 7pm kick-off.
However, the Division Two fixture was postponed due to positive Covid-19 cases and injuries within the young Magpies' squad and will now take place on Monday, 28th March, with kick-off set at 7pm (BST).
Elliott Dickman's side currently sit in seventh place of Premier League 2 Division Two on 20 points, two adrift of the play-off spots.