Picking a Meta Ads agency for your Shopify store is one of the highest-leverage decisions an ecommerce founder makes. Get it right and you have a growth engine. Get it wrong and you burn ad spend with nothing to show for it. Here’s what actually matters when evaluating one.

1. Do they understand Shopify specifically?

Running ads is only half the job. A good Meta Ads partner should understand pixel setup, Conversions API implementation, and how your Shopify checkout flow affects attribution. Agencies that only know “ads” and not “ecommerce” often miss easy wins on the store side.

2. Ask for real numbers, not just case study screenshots

Anyone can show a screenshot. Ask for context: what was the ad spend, what was the timeframe, what platform was it on. A credible agency will happily walk you through the full picture — spend, purchases, and ROAS together, not cherry-picked metrics.

3. Understand their pricing model before you commit

Some agencies lock you into rigid packages that don’t match your actual store size. Others scope pricing around your specific ad spend and goals. Neither is automatically better, but you should understand which one you’re getting into, and what happens if your budget changes.

4. Look for full-funnel thinking

Top-of-funnel awareness content, middle-of-funnel retargeting, and bottom-of-funnel conversion campaigns all serve different jobs. An agency that only runs one type of campaign is leaving performance on the table.

5. Communication speed matters more than people expect

Ad accounts need fast decisions — pausing an underperforming ad set, scaling a winner, reacting to a policy change. If an agency takes days to respond, that lag costs you real money.