Hi Marcel,
Once you award a sourcing event (aka quick project) you will see an option to create a contract workspace directly from the sourcing project award tab itself provided you have Contracts module subscription (on-Demand/cloud) or Contracts module is also installed (On-Premise).
In cases where you do not have your Ariba contracts module, you still get an option to download contract from actions button on award tab on sourcing project.
Regards
Vilas