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Hello Tom, this is Abe from the Moz Help Team. I'd love to help! First, you will need to set up a new campaign and archive the current one if your primary campaign domain is incorrect. Right now we do not have the option to customize a campaign's main domain settings. Second, https:// is not available for competitor sites quite yet. We hope to add this capability and I apologize for any inconvenience. If you have any further issues, reach out to the Moz Help team at help@Moz.com. Ask for Abe.