Marketing Campaign Analyzer — ROI Deep Dive

Analyze the following marketing campaign data and provide actionable insights.

**Campaign data:**
[paste your campaign metrics: channel, spend, impressions, clicks, conversions, revenue]

**Analysis framework:**

1. **Performance overview:**
   - ROAS (Return on Ad Spend) per channel
   - CPA (Cost per Acquisition) vs target
   - CTR and conversion rate benchmarks
   - Spend efficiency: which channels over/under-performing?

2. **Attribution analysis:**
   - Last-touch vs estimated multi-touch contribution
   - Identify assist channels (high impressions, low direct conversions)
   - Flag any channel cannibalization

3. **Optimization recommendations** (top 5):
   - For each: what to change, expected impact, effort level
   - Include budget reallocation suggestion with $ amounts
   - A/B test ideas for underperforming channels

4. **Audience insights:**
   - Which segments convert best?
   - Where is the biggest drop-off in the funnel?
   - Lookalike expansion opportunities

5. **Next month plan:**
   - Recommended budget split (% per channel)
   - Three experiments to run
   - KPIs to track with target values

**Output**: Executive summary (5 bullets) + detailed analysis with tables.