Why are some products not showing up in my online store?

Sorry for late reply. I hope you have solved it, but if not you can change the URL and Handle by following these steps:

  1. Log in to Shopify Admin.
  2. Click on “Products”.
  3. Click on the product you want to change.
  4. Scroll down to the bottom and click “Edit website SEO”.
  5. Under “URL and handle”, change the URL/Handle to what you would like it to.

For example, if I sold an item and gave it the handle big-pink-flowerpot, this handle would show in the URL after /products/.