The following procedure gives you the details to activate the SES trial with MSW:
Select the SonicWall Endpoint Security Premier and click Try Now.
Choose a Friendly Name.
Choose the Tenant name and click Try Now.
Choose your data center from the Select Data Center drop-down and click Try Now.
A success notification confirms that the SonicWall Endpoint Security Premier trial product has been registered successfully.
Navigate to My Workspace > Products and select your tenant from the Tenants drop-down.
Refresh the page and click on the serial number of the SonicWall Endpoint Security product.
Click the Licenses tab to view your licensing information.
Now, you have a 10-user, 30-day trial for Endpoint Security Product Bundle and Support Services.

To activate a SonicWall Endpoint Security Premier license. Click Activate under the actions tab on your service name and enter your activation key for the service activation.
Click Confirm.