Here you able to map any field from sales contracts to tasks. This is used when the quotation is marked as accepted and a task is being created from the quotation, the quotation fields are then copied to the new task according to this setup.

You have done mapping, remember to press the Save button.

Notice that not all field copying makes sense, f.ex. it makes no sense to copy the quotation company field to the task deadline field. The source and destination field must be of similar types.