# Step 2 - Authorize Pump

While the first step showed you the estimated savings Pump provides you, authorizing Pump allows you to buy and sell reserved instances and savings plans on your behalf.

<figure><img src="https://44033590-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9AjQj4Qn0NOuXDBL27jQ%2Fuploads%2FC2K38K7QReeP5vcdHOJE%2FGroup%204.png?alt=media&#x26;token=6b00439c-52f8-45ac-90e5-3cfd0d4eebbd" alt=""><figcaption><p>Step 2 - Authorize Pump</p></figcaption></figure>

Pump group buys for all our customers, that means higher efficiencies when it comes to allocating unused resources from one customers to another & getting those group discounts.

As we follow AWS's safety principles, we ask to create another cloud formation stack and this time with additional permissions such as[ these.](https://help.pump.co/aws-joining-pump/aws-role-deployment-and-permissions) One you are done creating a stack, you are done.<br>