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A rule, or set of rules, that determines how credit for sales and conversions is assigned to touchpoints in conversion paths.
An attribution model is the rule, or set of rules, that determines how credit for sales and conversions is assigned to touchpoints in conversion paths. For example, Last Interaction attribution assigns 100% credit to the final touchpoints (i.e., clicks) that immediately precede sales or conversions. First Interaction attribution assigns 100% credit to touchpoints that initiate conversion paths. These are two examples of attribution models.
