What does "Proven ROAS" mean?

For e-commerce campaigns, what does “Proven ROAS” mean?

What is the $1,000 e-commerce start-up fee for?

Building an eCommerce campaign is extra complex. While we don't like a charging set up fee, it covers necessary costs like rebuilding and optimizing your data feed, uploading your product listings, and having our Tag Implementation team set up conversion tracking and dynamic remarketing.

costs
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