What is the most critical factor in choosing an attribution model, when the primary goal is to optimize budget allocation across multiple channels with complex customer journeys?

The most critical factor in choosing an attribution model when the primary goal is to optimize budget allocation across multiple channels with complex customer journeys is the model's ability to accurately reflect the actual customer journey and assign appropriate credit to each touchpoint along the way. An attribution model is a framework for determining which marketing touchpoints receive credit for a conversion. Complex customer journeys involve numerous interactions across different channels (e.g., social media ads, email marketing, search engine results) befor....