# Eligible subscription types for Linux in License Manager
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License type conversion is available for supported versions of Ubuntu. The supported versions include updates such as Ubuntu 18.04.1 LTS. When you convert a subscription to Ubuntu Pro, security updates are provided for an additional five years. For more information, see [Ubuntu Pro](https://ubuntu.com/pro) in the Canonical documentation.

You can use license type conversion for long-term support (LTS) versions of Ubuntu, RHEL, and RHEL for SAP. You can switch subscriptions between AWS-provided and Red Hat-provided options from AWS Marketplace.

## License type conversion considerations
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Some of the considerations that license type conversion is subject to are listed as follows. This is not a comprehensive list and is subject to change.

**RHEL and RHEL for SAP conversion**
+ If you're converting to subscriptions sold by Red Hat as an AMI listing on AWS Marketplace you must first subscribe to the Marketplace AMI listing before initiating the license conversion.
+ For transitions to the Red Hat Subscriptions SaaS listing on AWS Marketplace you need to purchase subscriptions from Red Hat prior to conversion.
+ If you have an annual Red Hat contract from AWS Marketplace you will not receive a refund for unused months when converting to another subscription type.
+ To convert from RHEL for SAP sold by Red Hat in AWS Marketplace to RHEL for SAP sold by AWS in AWS Marketplace send a request to Support. For more information, see [Creating a support case](https://docs.aws.amazon.com/awssupport/latest/user/case-management.html#creating-a-support-case).

**Ubuntu conversion**
+ The instance must be running Ubuntu LTS in order to convert the license type to Ubuntu Pro.
+ You can't use license type conversion for a Ubuntu Pro subscription. To remove a Ubuntu Pro subscription, see [Remove a Ubuntu Pro subscription](conversion-procedures-linux.md#remove-subscription-ubuntu-pro).
+ Ubuntu Pro is not available as a Reserved Instance. For savings with On-Demand Instance pricing, we recommend that you use Ubuntu Pro with Savings Plans. For more information, see [Reserved Instances](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-reserved-instances.html) in the *Amazon EC2 User Guide* and [What are Savings Plans?](https://docs.aws.amazon.com/savingsplans/latest/userguide/what-is-savings-plans.html) in the *Savings Plans User Guide*.
+ To convert from Ubuntu Pro to Ubuntu LTS send a request to Support. For more information, see [Creating a support case](https://docs.aws.amazon.com/awssupport/latest/user/case-management.html#creating-a-support-case).