Add Capacity to Tableau Server
You may need to add capacity to your Tableau Server installation to allow you to increase the number of users (if you have a user-based license) or the number of cores (if you have a core-based license).
Tableau Software will provide you with a new product key that adds capacity to your existing Tableau Server installation. You need to activate this key and use it together with your existing product key(s) to get the combined capacity you are licensed for.
Follow the steps below to add a product key to Tableau Server.
Note: This process requires a restart of Tableau Server.
Start the Product Key Manager:
In Windows, select Start > All Programs > Tableau Server <version> > Manage Product Keys.
Click Activate in the Manage Product Key dialog box:
Enter or paste your new product key and click Activate:
Restart Tableau Server after registration is complete.