Lowland League champions Bonnyrigg Rose Athletic host Highland League winners Fraserburgh in the first leg of their tie at New Dundas Park on Saturday,
The return match takes place at Bellslea Park on Saturday April 30, with the winners taking on Cowdenbeath on May 7 & 14 for a place in next season's SPFL.
Bonnyrigg finished 14 points clear in the Lowland League and completed their fixtures with a 1-0 win at East Kilbride on Saturday while Fraserburgh pipped Buckie Thistle to the Highland League title on the final day thanks to a 5-0 victory over Forres Mechanics.
Cowdenbeath's position as bottom club in cinch League 2 was confirmed at the weekend following their 0-0 draw with Edinburgh City at Central Park.