The MB-800 Microsoft Dynamics 365 Business Central Functional Consultant certification needs to be renewed on an annual basis; I originally passed the exam in September 2022 which means it is up for renewal in September this year, but you can actually renew from 6 months prior (I’ve passed two prior renewals as well).
I received an email from Microsoft earlier that the certification was available to renew and had a little time to spare so figured I might as well take the recertification test (and successfully passed):