Retargeting via Marketo RTP and Google Ads

[Delci_Organ2]

We have set up the connection from Marketo RTP to Google Ads.  We have created segments in RTP and can see those segments in Google Ads.

We keep hearing about Google Ads having a 100 person minimum - what does this mean?  If I create a segment in RTP that has 5 persons, and I go to Google Ads, Create an audience and select the RTP segment from marketo that has 5 persons, I then add that Audience to a Google Ads campaign will it not work because there are not enough persons?  

I read on Google Ads that "audiences must gather 100 unique visitors before we are eligible to serve ads to that specific remarketing list".  What exactly does that mean?

[vinaytamta]

Yes! That is correct.

Google doesn't serve ads to a retargeting audience size below 100.

I haven't found anyone claiming to see different results.