Amazon has released supply-chain and cloud services that are based on its retail business.

The cloud unit showed off AWS Clean Rooms at its annual conference in Las Vegas.

Amazon.com, Inc. (AMZN.O) released software on Tuesday that uses its experience in retail to try to sell more to businesses and stay the biggest cloud-computing company, ahead of Microsoft Corp. (MSFT.O) and Alphabet Inc.’s (GOOGL.O) Google.

Using what it has learned from years of delivering online orders to customers’ doors, Amazon’s cloud division has released a service called AWS Supply Chain. This service will tell businesses when their stock is running low and help them deal with supply problems that were common during the pandemic.

Related: The CEO of Amazon says job cuts will continue into the following year.

At its annual conference in Las Vegas, the cloud unit showed off AWS Clean Rooms, which, among other things, let businesses tailor ads to customers while maintaining their privacy. In the past few years, Amazon has built up its own large advertising business.

The services are part of Amazon’s long-term plan to build features for its online store and then offer them to other businesses. At the same time, Amazon’s cloud has lost sales to brick-and-mortar stores that don’t want to work with a company that is also a competitor in the online shopping market.

Amazon Omics analyses genomes and Amazon Security Lake helps businesses put together data from cybersecurity vendors and other sources. These are some of the other new services it announced.