You can make it so users must complete certain entry methods before they are allowed to complete others. To do this, select which entry methods you want to make mandatory. Whichever entry methods aren’t set to mandatory will be locked until the mandatory entries are completed.
Let’s say for example, you choose to only make the newsletter entry method mandatory.
Now when the user enters the giveaway, they must complete the newsletter entry method before they are allowed to do anything else.
A reason to do this would be if you have a certain entry method that is more important to you than others. This would be a good idea it was more important for you to increase your email list than your Facebook followers.