The entrepreneur must determine a minimum target amount and work diligently to accomplish that goal. If the campaign reaches 100% of the minimum target amount, the company will receive the money. If it doesn't succeed, it will receive nothing.
If the campaign is set up to accept over subscription the entrepreneur has to set the maximum amount he will accept from oversubscribed pledges. In this case, the company can keep all the money raised on top of the minimum target amount.
When deciding to accept over-subscription the entrepreneur has to show reliable planning including the use of funds.