Microsoft announced last week that customers who purchased a copy of a standalone Office product will have their access revoked to Skype for Business and OneDrive for Business accounts starting October 13, 2020. Microsoft is trying to move away from the classic license-based purchase model to a monthly subscription service. Experts say this is a veiled attempt to force customers to move to its Office 365 ProPlus service. Microsoft said it took this decision to make this decision easier for companies and.sysadmins to make the upgrade process easier.
Source: https://www.bleepingcomputer.com/news/microsoft/microsoft-removing-standalone-office-features-to-force-users-towards-office-365/