- Who
- Dirk Kreuter
- What
- 5,638 people
- Where
- Deutschland (Dortmund)
- When
The largest sales lesson consists of 5,638 participants, achieved by Dirk Kreuter (Germany) at the event Dirk Kreuters Vertriebsoffensive, in Dortmund, Germany, on 16 June 2018.
The lesson took place at a weekend long sales convention.
