campaign-analytics

Campaign Analytics

Production-grade campaign performance analysis with multi-touch attribution modeling, funnel conversion analysis, and ROI calculation. Three Python CLI tools provide deterministic, repeatable analytics using standard library only -- no external dependencies, no API calls, no ML models.

Input Requirements

All scripts accept a JSON file as positional input argument. See assets/sample_campaign_data.json for complete examples.

Attribution Analyzer

{
  "journeys": [
    {
      "journey_id": "j1",
      "touchpoints": [
        {

Funnel Analyzer

Campaign ROI Calculator

Input Validation

Before running scripts, verify your JSON is valid and matches the expected schema. Common errors:

Missing required keys (e.g., journeys, funnel.stages, campaigns) → script exits with a descriptive KeyError
Mismatched array lengths in funnel data (stages and counts must be the same length) → raises ValueError
Non-numeric monetary values in ROI data → raises TypeError

Use python -m json.tool your_file.json to validate JSON syntax before passing it to any script.

Output Formats

All scripts support two output formats via the --format flag:

--format text (default): Human-readable tables and summaries for review
--format json: Machine-readable JSON for integrations and pipelines

Typical Analysis Workflow

For a complete campaign review, run the three scripts in sequence:

Use attribution results to identify top-performing channels, then focus funnel analysis on those channels' segments, and finally validate ROI metrics to prioritize budget reallocation.

How to Use

Attribution Analysis

Funnel Analysis

Campaign ROI Calculation

Scripts

1. attribution_analyzer.py

Implements five industry-standard attribution models to allocate conversion credit across marketing channels:

Model	Description	Best For
First-Touch	100% credit to first interaction	Brand awareness campaigns
Last-Touch	100% credit to last interaction	Direct response campaigns
Linear	Equal credit to all touchpoints	Balanced multi-channel evaluation
Time-Decay	More credit to recent touchpoints	Short sales cycles
Position-Based	40/20/40 split (first/middle/last)	Full-funnel marketing

2. funnel_analyzer.py

Analyzes conversion funnels to identify bottlenecks and optimization opportunities:

Stage-to-stage conversion rates and drop-off percentages
Automatic bottleneck identification (largest absolute and relative drops)
Overall funnel conversion rate
Segment comparison when multiple segments are provided

3. campaign_roi_calculator.py

Calculates comprehensive ROI metrics with industry benchmarking:

ROI: Return on investment percentage
ROAS: Return on ad spend ratio
CPA: Cost per acquisition
CPL: Cost per lead
CAC: Customer acquisition cost
CTR: Click-through rate
CVR: Conversion rate (leads to customers)
Flags underperforming campaigns against industry benchmarks

Reference Guides

Guide	Location	Purpose
Attribution Models Guide	`references/attribution-models-guide.md`	Deep dive into 5 models with formulas, pros/cons, selection criteria
Campaign Metrics Benchmarks	`references/campaign-metrics-benchmarks.md`	Industry benchmarks by channel and vertical for CTR, CPC, CPM, CPA, ROAS
Funnel Optimization Framework	`references/funnel-optimization-framework.md`	Stage-by-stage optimization strategies, common bottlenecks, best practices

Best Practices

Use multiple attribution models -- Compare at least 3 models to triangulate channel value; no single model tells the full story.
Set appropriate lookback windows -- Match your time-decay half-life to your average sales cycle length.
Segment your funnels -- Compare segments (channel, cohort, geography) to identify performance drivers.
Benchmark against your own history first -- Industry benchmarks provide context, but historical data is the most relevant comparison.
Run ROI analysis at regular intervals -- Weekly for active campaigns, monthly for strategic review.
Include all costs -- Factor in creative, tooling, and labor costs alongside media spend for accurate ROI.
Document A/B tests rigorously -- Use the provided template to ensure statistical validity and clear decision criteria.

Limitations

No statistical significance testing -- Scripts provide descriptive metrics only; p-value calculations require external tools.
Standard library only -- No advanced statistical libraries. Suitable for most campaign sizes but not optimized for datasets exceeding 100K journeys.
Offline analysis -- Scripts analyze static JSON snapshots; no real-time data connections or API integrations.
Single-currency -- All monetary values assumed to be in the same currency; no currency conversion support.
Simplified time-decay -- Exponential decay based on configurable half-life; does not account for weekday/weekend or seasonal patterns.
No cross-device tracking -- Attribution operates on provided journey data as-is; cross-device identity resolution must be handled upstream.

analytics-tracking: For setting up tracking. NOT for analyzing data (that's this skill).
ab-test-setup: For designing experiments to test what analytics reveals.
marketing-ops: For routing insights to the right execution skill.
paid-ads: For optimizing ad spend based on analytics findings.