Background:

New product launch. Manual exact match campaign. Base bid started at $1.5, increased to $2, then to $2.5 (system suggested range: $2–$3.5). Running for 3 days.

Data:

Product pages: 2,000+ impressions, 10 clicks

Top of search: 0 impressions, 0 clicks

Rest of search: 50 impressions, 0 clicks

Question:

Should I keep raising base bid (e.g., to $3.5+)? Or lower base bid + add high placement multipliers (e.g., 50–100% for top of search)?

Also, how do you determine when you’ve hit the “bid ceiling” and shouldn’t increase further?