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What's the minimum size of a seed custom audience to create an effective Facebook lookalike audience?

+3 votes

facebook audiences
facebook
lookalike audiences

asked Jul 24, 2019 by Eric_Seufert (14.6k points)

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1 Answer

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The minimum source audience size is 100 people, but we tested different sizes from 1000 to 10000 and found out that for us 3000 was the sweet spot and we stick to it. Kepp in mind that the audience overlap during this test could make the difference.

Expert in Facebook answered Feb 17 by breter (1k points)

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