Add to cart button not showing WooCommerce

WooCommerce decides on the server whether a product is for sale. If the product is out of stock, the page shows an out of stock message in place of the form. If the product has no price, it cannot be bought and the form does not appear. A theme can override the product template, and an outdated copy may leave out the step that outputs the form. A plugin that hides prices or buttons from guests, or from some customer roles, removes the form for one kind of visitor only. The shopper sees a product with nothing to press.

• Read the product page for an out of stock line, and check the stock status of the product in the admin.
• Check that the product has a regular price, since a product with no price cannot be bought.
• Open the page in a private window and again while logged in, to see whether a visibility plugin changes it.
• Search the page source for the single add to cart button class, to tell a missing form from a hidden one.
• Open the WooCommerce status report and look for template overrides in the theme that are out of date.

The shopper finds the product, reads the title and the description, and looks for a quantity box and a button under the price. On a WooCommerce product, the price is drawn first and the form follows it. When the form is absent, the price may still show, so the shopper sees a number with nothing to do next. Some assume the item is sold out and move on.

The three most common causes leave different traces, so look before you guess. An out of stock product shows an out of stock message in place of the form, and its stock status in the admin says out of stock. A product with no price shows no form, and its regular price field is empty. A template override is the odd one: the page has a price and a description, but the form never appears, and the page source has no add to cart button at all. A plugin that hides prices from guests removes the button for guests only.

Test the logged-out and logged-in views separately. A private window shows what a guest sees, and your own logged-in window shows what you see as an admin. If the button appears only when logged in, a visibility plugin is the cause, and its settings are the place to look. If it is missing in both views, check the stock, the price and the page source, in that order.

WooCommerce adds the form through a template hook on the single product page. A theme can remove that hook, or replace the product template with a copy that skips it. The page source then shows the product name and the price, but no form carrying the add to cart button class. An out of date override is a common reason for that gap, and the WooCommerce status report can flag outdated template overrides, which is the quickest way to find a copy that has fallen behind.

A simulated visitor arrives as a guest, opens the product from its link, and looks for a way to buy it. The run records a screenshot of the product page as a guest, the controls it could find, and any script error or failed request on that page. A button hidden from guests shows in that screenshot, which is the view a shopper with no login gets.

The run cannot read your stock, your prices or your template files, so it cannot say which cause you have. Use the guest screenshot to confirm the missing button, then use the admin and the page source to find the reason. Run the same guest visit after each fix, on the same product and the same device, so the screenshots can be compared.

Stock runs out and comes back, a price rule expires, or a theme update replaces the product template, and the button disappears or returns without a word. Run the same guest visit after each of those changes, on a product that sells out often and on one that never does.