I recieve calendar invites in my yahoo email inbox. From there I am able to add the invite to my ios calendar and accept. The problem begins when the appointment is updated. I cannot move the appointment on my calendar. Even if i delete the old appointment and try to add the new appointment, like i did originally, it doesnt work. I use the calendar for work and the 3 people who send me the invites are all on ios as well. Does anyone out there have a solution?
iPhone 5s, iOS 7.1.1, I had this problem with my 4s also