They also participated in this season's edition of the domestic cup, the DFB-Pokal, where they were eliminated in the first round by Viktoria Köln.

Union started the season poorly, picking up just four points from their first five games, and as a result, manager Norbert Düwel was sacked on 31 August 2015.

[2] Sascha Lewandowski was appointed as his replacement on 2 September 2015,[3] and the club saw a gradual improvement in results, with the club in 13th place with 23 points from 19 games at the time of the winter break.

[4] However, due to health problems, Lewandowski stepped down as manager in March 2016, with André Hofschneider appointed as his replacement on a temporary basis.

[5] Union finished the season in 6th place on 49 points.