### What happened? ### Description Note: the issue described below previously worked on Craft 4, but since Craft 5 upgrade, it's stopped I have a Craft Commerce site where the products are pulled in from a remote JSON endpoint. We populate certain fields from that endpoint, but have the 'Shipping Category' and 'Tax Category' set to use a default value (see screenshot below). <img width="1049" alt="Image" src="https://github.com/user-attachments/assets/8f7ff9f6-6606-4c7e-86cd-c3fd5c2d0144" /> The 'Use default' value is never used, and when a new product gets created, it just uses the default Shipping Category and Tax Category that are set in Commerce > Store Management instead. The cause of the issue appears to be due to a change in Craft 5 where the 'taxCategoryId' and 'shippingCategoryId' are no longer appear in the attributes function in Purchasable.php. In Craft 4 they both appear: https://github.com/craftcms/commerce/blob/4.x/src/base/Purchasable.php#L65 In Craft 5 they do not: https://github.com/craftcms/commerce/blob/5.x/src/base/Purchasable.php#L251 When I edit the Purchasable.php in my vendor folder and add those two fields, feed me does set those correctly. Are you able to add those two attributes to the function so Feed Me can set those two fields? ### Steps to reproduce 1. In Commerce > Store Management > Tax Categories, setup two Tax Categories and mark one as default 2. Setup Feed Me for a Commerce Product 3. In the variants section of the Feed Me feed, set the 'Tax Category' to 'Use default value' and set the field in the 'Default Value' column to be the Tax Category that is **not** marked as default in Commerce > Store Management > Tax Categories 4. Run Feed and confirm that the Tax Category has not been setup correctly ### Expected behavior Feed Me sets the Tax Category ID and Shipping Category ID fields on a variant correctly. I expect this to work as those fields exist in the Twig template for Feed Me commerce products: https://github.com/craftcms/feed-me/blob/6.x/src/templates/_includes/elements/commerce-products/map.html#L130 ### Actual behavior Feed Me doesn't set the Tax Category ID and Shipping Category ID fields on a variant. ### Craft CMS version 5.7.10 ### Craft Commerce version 5.3.13 ### PHP version _No response_ ### Operating system and version _No response_ ### Database type and version _No response_ ### Image driver and version _No response_ ### Installed plugins and versions - Feed Me: 6.8.0