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IMO it's important to distinguish between audience saturation and creative saturation for this assessment. -> Creative saturation -> typically this happens when your creative is seen by everyone in the audience - and creative performance starts to deteriorate(typically that means worse CTRs, CPAs, ROAS-es). I typically find that this starts to happen around a frequency of 1.8 - 2 -> but really I'm looking at CTRs, CPAs, ROAS-es to ascertain creative saturation. You typically remedy this by adding new creatives - could be either: -> completely new ad creatives. -> Audience saturation -> You see this when you ad set level performance does not improve even after you implement creative refreshes to combat creative saturation. In my experience this starts to happen at a first-time-impression ratio of under 50% on a sustained basis -> although again much like creative saturation I'm looking at performance metrics to see if they continue to stay down after I implement creative refreshes. If I'm seeing sustained audience saturation, then I typically start expanding to or testing new audiences -> this Quantmar thread should offer some inspiration: https://quantmar.com/434/What-best-examples-facebook-lookalikes-that-work-campaigns Marked as spam
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