To map attributes between PIM and Magento 2, start by listing the important product details in your PIM, like product name, price, and images. Then, match these details with the same fields in Magento 2. Using Magento 2 PIM Integration tools can make this easier by automatically linking the right attributes. Make sure the information matches well to avoid errors. https://unopim.com/extensions/magento-2-pim-integration/