I have a collaboration with another organization, and they have two coordinators from when we first initiated the collaboration. One has since retired and someone else with a brand new login has assumed his position. I want to add that new login to the collaboration but I can't find where to do that. Any help would be appreciated. Thank you.
I hope you are doing well.
Have you looked at the steps on our documentation? Manage partnered collaborations—ArcGIS Online Help | Documentation
Regards,
Glen