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Hey Scott, Thanks for the question. Can you do me a favor and send over the information you're trying to enter to help@moz.com. I've not had any other reports of this so we'll definitely want to investigate this for you. As far as creating a campaign in Pro, I would advise against that. Typically when the campaign can't be created in Analytics it's because of some sort of a conflict or deeper issue that should be addressed. Thanks! Joel.