Cash is a great way to reward your ambassadors when they complete a mission for you. Cash can be withdrawn if you are at gold or diamond level, but alternatively converted into gift cards to spend at the ambassador's choice of brand. To encourage ambassadors to convert their cash into a gift card to spend at your store, it's preferable to have a high conversion bonus percentage. This percentage increases the amount of cash the ambassador has, to create a higher-value gift card.
For example, if your ambassador has earned $100 by completing missions (whether they were for your brand or not), they can choose to convert that cash to a gift card at your store. If you set your conversion bonus percentage at 20%, the ambassador can get a $120 gift card to use at your store from their $100 cash.
This money goes back to you and is added to your brand account for you to spend on future missions.