# Subscribing to an AMI product with contract pricing
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Sellers offer public or private contracts for Amazon Machine Image (AMI)-based software products. You agree to make a one-time upfront payment for discrete quantities of licenses to access the software product.

If the contract is a public offer, you can choose the duration of the contract and whether to automatically renew the licenses.

Private offers typically have a fixed duration that you can't change.

**To subscribe to a public offer AMI-based product with a contract pricing model**

1. Sign in to AWS Marketplace and find an AMI-based software product with a contract pricing model.

1. On the **Procurement** page, view the **Pricing Information**.

   You can see the **Units** and the rate for each duration (in months).

1. Choose **Continue to Subscribe** to start the subscription. 

   To save this product without subscribing, choose **Save to List**.

1. Create an agreement by reviewing the pricing information and configuring the terms for the software product. 

   1. Choose the duration of the contract: **1 month**, **12 months**, **24 months**, or **36 months** 

   1. Under **Renewal Settings**, choose whether to automatically renew the contract.

   1. Under **Contract options**, choose a quantity for each unit.

   The total contract price is displayed under **Pricing details.**

1. After you have made your selections, choose **Create Contract**.

The **Total contract price** is charged to your AWS account. A license is generated in AWS License Manager.

**Note**  
It can take up to 10 minutes for the subscription to process and a license to be generated in your AWS License Manager account for the software product.

**To subscribe to a private offer AMI-based product with a contract pricing model**

1. Sign in to AWS Marketplace with your Buyer account.

1. View the private offer. 

1. On the **Procurement** page, view the **Pricing Information**.

    You can see the **Units** and the rate for each duration (in months). 

1. Choose **Continue to Subscribe** to start the subscription. 

1. Create an agreement by reviewing the pricing information and configuring the terms for the software product. 

   The duration of the contract is already set by the Seller and can't be modified. 

1. Under **Contract options**, choose a quantity for each unit.

1. View the total contract price under **Pricing details**.

   You can also see the public offer by choosing **View Offer** under **Other Available Offers**.

1. After you have made your selections, choose **Create Contract**.

**Note**  
It can take up to 10 minutes for the subscription to process and a license to be generated in your AWS License Manager account for the software product.