Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello, Please use the instruction here: https://support.microsoft.com/office/how-to-remove-office-license-files-on-a-mac-b032c0f6-a431-4dad-83a9-6b727c03b193 Download and run the license removal tool to clear the cached business credential, Then see if it allows you to sign into personal account.