Rudolph Moshammer's boutique was in Maximilianstraße 14 in Munich, not in house Nr. 32.
When talking about Moshammer's customers Else Moshammer mentioned the boss of Krupp-Thyssen. The companies "Friedrich Krupp AG" and "Thyssen AG" didn't merge to "Thyssenkrupp AG" until 1999. The scene however is set in 1983.
Toni suggests Moshammer, that he should appear more in the private commercial media. The scene is set in 1983 and the first private media station in Germany was opened only one year later with PKS/Sat.1 and RTL. And the local Munich TV station "TV München" (mentioned in the movie as "München TV" was founded in 1985.