Frequently asked questions
Q: Can I use variable products as child items inside a Mix & Match container?
A: No. Only simple products that are published, purchasable, and visible are eligible as child items. Variable, grouped, and external products cannot be added to a container (will be added in future versions).
Q: What happens if a child product goes out of stock after the container is published?
A: Out-of-stock products still appear in the selection interface but display an “Out of Stock” overlay, and their quantity controls are removed. Customers cannot add out-of-stock items. If an out-of-stock item is already in an active cart session and the customer tries to complete checkout, WooCommerce’s standard stock validation will block the purchase.
Q: Can customers add a child product to the cart separately and also include it in a container?
A: No. The plugin prevents this in both directions. If a customer tries to add a product independently that is already in their cart as part of a container, they will see an error notice. If a customer adds a container that includes a product already in their cart independently, the independent cart item is automatically removed and a notice explains what happened.
Q: What happens if I switch the Child Product Source from “Specific Products” to “Categories”?
A: Switching the source and saving the product clears the previously selected data for the unused source type. Switching from Specific Products to Categories clears the _mnm_child_products meta. Always re-configure the new source before publishing after a switch.
Q: I set Pricing Mode to Fixed Price and saved, but the mode reverted to Per Item. Why?
A: Fixed Price mode requires a valid Fixed Container Price greater than 0. If the price field is empty or zero when you save, the plugin automatically falls back to Per Item pricing. Set a price greater than 0 before saving.
Q: How does the cart count work? Does it count each child item separately?
A: No. The cart item count (shown in your theme’s cart icon) excludes child items. Only the container itself is counted, so a cart with two Mix & Match containers shows a count of 2 regardless of how many individual items are inside.
Q: Can I use Mix & Match with HPOS enabled?
A: Yes. The plugin explicitly declares HPOS compatibility.
Q: Does the plugin work with the WooCommerce Blocks cart and checkout?
A: The plugin has not declared Cart & Checkout Blocks compatibility. Use the classic WooCommerce cart and checkout shortcode pages.
Q: Can a Mix & Match product have no minimum quantity?
A: Yes. Setting both Minimum Quantity and Maximum Quantity to 0 means there are no enforced limits — customers must still select at least one item, but there is no upper bound. The plugin will still require at least one item to be selected before the Add to Cart button becomes active.
Q: How are the child products sorted in the selection interface?
A: For Specific Products, items appear in the order they were selected in the admin. For Categories and Tags, products are returned alphabetically by title.