Among other things, Krenn worked as a management assistant at the Hotel Yachtclub Timmendorfer Strand.
At the same time, she was active in the community, where she joined the local council in 1995, took over the function of head of tourism in 1998, and held the office of mayor of Pürgg-Trautenfels from 2007 to 2014.
[5] After an unsuccessful surgery in 2014, she became paraplegic and thus resigned from all functions, selling the inn to Dietrich Mateschitz.
[6] In November 2018 she succeeded Dorothea Schittenhelm as the women's spokeswoman of the ÖVP parliamentary group.
[8][9] Her seat on the National Council went to Karl Schmidhofer,[10] and Juliane Bogner-Strauß succeeded her as women's spokeswoman.