I think I understand what you said here, but it has been almost a year and I am wondering if there is an easier way to compare (in Eloqua) in the following situation: I upload 200,000 contacts for a one time event email. I see that 78,000 are new via the reporting in integration options. What would be the easiest way to target that 78,000 so they can be deleted. (deleting the whole list would delete people we want to keep).
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