Choose the right edition. Don't pay for enterprise features if a professional edition suffices.
Click the at the top right and select the About page. Click the Register link. Manageengine Opmanager License Key
ManageEngine offers flexible licensing tiers based on the size of your infrastructure and deployment needs. The Metric: Device-Based Licensing Choose the right edition
If you're not ready to purchase, ManageEngine offers a free trial. This allows you to evaluate OpManager with a limited number of devices before deciding on a purchase. Click the Register link
Without a valid key, OPManager reverts to a 30-day trial license. After 30 days, critical features like alerting, reporting, and automated discovery are disabled.
Ultimate Guide to ManageEngine OpManager License Key: Types, Pricing, and Activation
If you are a managed service provider, contact ManageEngine’s sales team. They frequently provide to partners for internal use. You can manage your own lab environment legally.