> For the complete documentation index, see [llms.txt](https://academy.gopersonal.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://academy.gopersonal.ai/en/admin-ui/segmentation/audiences/affinity-rules.md).

# Affinity Rules

Customer affinity with specific product properties such as color, size, category, or brand. For example, customers whose highest affinity is with the color red.