Why Attribution Matters
Without proper attribution, you are flying blind. You cannot optimize what you cannot measure, and in multi-channel marketing, understanding which touchpoints drive conversions is the difference between scaling profitably and wasting budget on underperforming channels.
Common Attribution Models
Last-click gives all credit to the final touchpoint. First-click credits the channel that started the journey. Linear distributes credit equally. Time-decay weights recent touchpoints more heavily. Each model tells a different story about your marketing performance.
Data-Driven Attribution
Machine learning models analyze your actual conversion paths to assign credit based on the incremental impact of each touchpoint. This is the gold standard but requires significant data volume — typically at least 600 conversions per month.
The Practical Approach
Do not obsess over finding the perfect model. Start with a multi-touch model, compare it against last-click to identify undervalued channels, and use incrementality testing to validate your findings. Attribution is a compass, not a GPS.
