The Campaign Duration is the number of calendar days until the Campaign lasts, within that the Campaign will have to reach its Minimum Funding Target from the day when it launched. (The Deadline should be stated in the campaign outline and including the date of the last day of the campaign). According to international best practices this duration is at most 45-60 days long.
The Campaign Period is different from the Campaign Duration in that it includes the preparation for the Campaign, the initial funding phase, and the capital increase phase as well.