In SuiteCommerce, why might a product fail to be added to a product list?

AI generated answer (using internal Slack threads):

In SuiteCommerce, a product might fail to be added to a product list due to several reasons: 1. Inventory Levels: If the inventory level of a product is zero or less than the quantity being added, the product cannot be added to the cart. This is because SuiteCommerce checks the inventory level of a product in real-time when a customer tries to add it to the cart. If other customers have purchased the same product while a customer was shopping, the inventory level might have changed. 2. Matrix Parent Items: If the product is a matrix parent item, it cannot be added directly to the cart. Matrix parent items are not sellable items. They are used to group similar items (child items) that have different variations like color, size, etc. Customers need to select a specific variation of the product (child item) to add it to the cart. 3. Product Status: If the product is inactive or out of stock, it cannot be added to the cart. The product status is also checked in real-time when a customer tries to add it to the cart. 4. Customizations: If there are any customizations or extensions that are interfering with the add to cart functionality, it might prevent a product from being added to the cart. It's recommended to check the customizations and extensions for any issues. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******