Child custody and support issues are often emotional and highly contested. Both parents commonly want to maintain their full custody of the children, but this is not possible when the marriage is dissolved. The court therefore must keep the best interests of the children in mind when deciding who gets legal and physical custody, what the parenting time schedule is to be, and other important aspects of the children's upbringing. The court must also use the Indiana child support guidelines to determine who pays child support and how much should be paid. Both custody and support can be later modified by motion upon various showings by the moving party.