Attribution Software Resources

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For example, we have a look a like campaign currently running, I would like to know if those new users that are being directed to the site are then converting using our other campaign efforts to to show the client the true value on that campaign. So even if they are converting elsewhere they are being introduced to the brand through that particular campaign's efforts.

Is there a way to send ads like google ads, but not retargeting, to a wide range of new potential customers