- View access to Google Ads — not a screenshot. Anyone competent will find something specific within ten minutes.
- Your gross margin, or the numbers to work it out. Without it nobody can set an honest target.
- Merchant Center status, including any warnings.
- Your last 12 months of store revenue, so seasonality is visible.
- What you have already tried, including what failed.
What to listen for
Do they ask about margin before quoting a ROAS? Do they check tracking before talking about campaigns? Do they tell you anything you did not want to hear? The eight verification checks.