3 segment itinerary (edit to add: purchased on the American web site) AS > AA > AA for March and I get this error message. I can see exactly what changed (one of the American flights changed and I'm okay with the change) but it doesn't give me the option to accept the change online. Called and spoke the words to the computer prompt to "accept the change" but then it routes me to a representative, for which there is a hold. Scheduled call back for later tonight.
I get it, schedules change, but this is now the fourth schedule we're working with for the trip on the way out.