I logged in this morning and the error seems to have been resolved.  The campaign that I had copied was in my campaign list and I was able to edit and send.   ... View more

I received a similar error message, Error getting campaign activity by activityId 6def94d1-9967-4bd4-81a0-84c7802c6f53: undefined, when I tried to copy the last email that I sent.  I need to modify it and send it out at 7am in the morning.  Looks like that's not going to happen.  I hope this error has generated notification to an on-call production team who is currently working on this system issue and will resolve it soon.  hint hint Constant contact.... ... View more