This extension will loop through all products in your store and check if the products are still available from your supplier.
This is a massive help if your shop is based on dropshipping, in which case the supply tends to be unstable. For a big shop you would normally experience every now and then that customers buy something that you can no longer supply them. This extension helps you avoid that by clicking 1 button.

The extension does this by checking the Location field on each product, which it expects to be one of the following:
A) A URL for the product at your supplier
B) "Made to order"
C) "In stock"
If the location field is empty, the product will be considered unavailable and automatically be disabled.
If the Location field contains a URL to a page with any of the following text, it will also be considered unavailable and disabled: 'no longer available!', 'not currently available', 'Out of Stock', 'Popular Searches', 'error=102', 'Page Not Found', ' did not match any products. Please try again.', 'has been removed'