Meta Ads
Sometimes yes, sometimes only partly. A returning customer can genuinely be influenced by a Meta ad: they may discover a new product, remember to reorder or respond to a promotion they would otherwise have missed. The problem is assuming every repeat purchase attributed to Meta was caused by Meta.
A previous buyer knows the brand and may have planned to reorder regardless of advertising. That makes repeat-customer campaigns naturally efficient.
If the customer clicks a Meta ad and purchases, Meta can legitimately claim the conversion under its attribution model. That tells you the ad was part of the path. It does not tell you what would have happened without it.
Useful reporting can include:
That lets you see whether Meta is expanding the customer base or mainly monetizing people already acquired. That's the same split covered in measuring new customer acquisition on Meta.
Existing-customer holdouts or geographic comparisons can help estimate whether paid reminders add meaningful incremental purchases. The right answer is not "never give Meta credit for returning customers." It is "do not confuse repeat-customer attribution with new-customer acquisition."
If Meta reports strong revenue but you do not know how much comes from existing customers, send us an inquiry. We can help separate the two.