What is the function of a "to order" bill of lading?

On my previous article I have explained the differences between a negotiable bill of lading and a non-negotiable bill of lading.

I have also described the importance of negotiable bill of lading in international trade on the same article.

I strongly recommend you to see my previous article titled with "How to complete consignee and notify fields of a bill of lading?" before reading this page in order to better understand today's post.

Today I want to explain the function of a "to order" bill of lading in foreign trade businesses.