My ex-spouse has asked to pick up our children, of whom we share custody, at a different time from that stated in our custody agreement. I’m fine with the change. Do we need to alter the agreement, or is a verbal agreement enough?

My ex-spouse has asked to pick up our children, of whom we share custody, at a different time from that stated in our custody agreement. I’m fine with the change. Do we need to alter the agreement, or is a verbal agreement enough? Practically, if this is a one-time, or two-time situation, a verbal agreement will suffice. If you…