Hi @Tim Herman ,
Yes, you can apply the new licenses and remove the old ones in the same process to avoid the duplicate cost. You will need to go in and select the license assignment for the users or groups, clear the checkbox for the old license, and add the checkbox for the new one.
https://video2.skills-academy.com/en-us/entra/identity/users/licensing-groups-change-licensesIf you have questions about specific pricing, it's also free to reach out to your licensing representative via free billing support. https://support.microsoft.com/en-us/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2
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