Neil Lennon's side drew 1-1 with Asteras Tripolis in Greece, with John McGinn on the scoresheet, to secure a 4-3 aggregate success.
Rangers are also into the next round following a 1-1 draw with Osijek of Croatia at Ibrox. Nikola Katic got the all-important goal for Steven Gerrard’s side, who win 2-1 on aggregate.
Aberdeen were beaten 3-1 by Burnley after extra time at Turf Moor (4-2 on aggregate), with Lewis Ferguson scoring a superb goal for the Dons.