Multi-channel attribution uses various attribution models to assign credit to different touchpoints. Common models include:
First-Touch Attribution: Gives all the credit to the first interaction. Last-Touch Attribution: Attributes all the credit to the final interaction. Linear Attribution: Distributes credit equally among all touchpoints. Time-Decay Attribution: Gives more credit to touchpoints closer to the conversion. Position-Based Attribution: Assigns 40% credit to first and last interaction, and 20% to middle interactions.