If you’re on a Microsoft Dynamics CRM Online trial, you can convert your account to a paid subscription. Purchasing your subscription grants you unlimited access to the communication and collaboration tools you experienced during your trial.
1. From the Admin Center, click Purchase now in your account alerts to convert the trial immediately.
2. Customize your order by choosing the number of licenses you’d like to order. You have the optional add-ons to select from before checking out. Once you have the number of licenses you want click check out.
3. Follow the steps Microsoft lays out for you to purchase your licenses. If you would like to add or purchase more licenses, or add other Office 365 plans to your subscription, you can do so in the purchase services section.
Note: To drop a licenses from your account, you will need to open a service request ticket with Microsoft. Learn more about how create a service request ticket.