When you reduce licenses, a prompt will appear directing you to the Participants tab to reduce the number of Active participants to match the desired number of licenses that you'll select at checkout.
Step 1: View Number of Participants
Organizational Metrics > Participants Tab
On the Organizational Metrics > Participants tab, the counter at the top displays the current number of active participants within your organization.
Archive or Remove (shown above) individuals marked as Active to match the reduced desired number of licenses.
User Status: Understanding Active, Archived, and Administrative
Return to your Subscriptions page and go through the license adjustment steps.
Once you arrive back at the checkout page, you’ll see that the number of licenses you wish to purchase is now accurately reflected.