Sales not going the way you expected? Amazon has launched a new program to help your e-book sales grow.
In short, it is a way for readers to purchase your physical book and get the e-book at a discounted rate. Now your readers have cheaper access to both a physical copy and an e-book of your latest novel for one low price.
Read all about it here: https://kdp.amazon.com/self-publishing/help?topicId=AVJCUBZXDNUM4&ref_=pe_452610_32244650