I know many of our DHs share joint legal custody with BM. Therefore, they'll both need appropriate medical, schooling, and activity information.

Given how high conflict a lot of these situations are, maybe it would be best if the school, doctor and coach emailed/mailed each parent the info instead of one parent having to make copies of it, send it, and get it to the other parent. Yes, it will mean that the school, doctors office and coaches will all have to have copies of the court order. Maybe one parent (often NCP dad) will have to wave it in their faces repeatedly.

To NCPs, I say, wave the court order in the schools, doctors, and coaches' faces repeatedly if necessary so you get the right information. Check the town and school websites. They often have calendars. If your child is enrolled in a private activity, like ballet, ask the child for the name of the ballet center they go to and google it. Many of these places have websites. Network with other parents so they can get you the info you need. Don't expect your ex to do it. You two have communication issues and that's probably part of why you're no longer together. I speak from experience. DH was NCP for years and BM didn't give him any info so he had to wave the court order in the schools and doctors faces. He networked with other parents and they always passed on activity info to him.

This issue just seems to come up all. the. time.