Copy nodes of content type into Commerce Products I currently have a Drupal website for an art gallery with a content type of Listing (A piece of Art work). Each Listing has a price in a decimal field type.

We are now looking to convert the website to ecommerce using Drupal Commerce, but there is about 500 Listings.

Is there a way to bulk copy/create all the Listings into Products and auto create the product reference and copy the price over as well?
There is no direct option or module which can convert a content type nodes to commerce products. But there are few ways you can do it.
You can export your nodes to CSV via node export or views bulk operations and then import those products using commerce feeds module.
Another way is to create a custom module and do db_select of all nodes of your particular content type and then create commerce products programmatically. You can use batch process to do this so that php execution time don't break your script.