Scenario:
The trial instance of Web TimeSheet has been converted into the production instance. Now the sample data needs to be deleted before the setup of the production instance can begin.

Solution:
Once the trial instance is converted into the  product instance, the sample data cannot be deleted as the data in Web TimeSheet is interlinked with one another.

Workaround:
The present database associated with the production instance needs to be replaced with a blank database. After which the Web TimeSheet application can be setup all over again.