Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hi Karen.Greene101,
As per the description, it seems like you are trying to migrate from Microsoft 365 personal subscription to Microsoft 365 Business subscription. If so, since business plan will require to sign up for a brand-new Microsoft 365 work account, which is different from the Microsoft personal account, you can transfer your current OneDrive files and other data to your new work account or you can choose copy to keep using on both sides at your preference.
For reference: Switch to a Microsoft 365 for business subscription - Microsoft Support
Please correct me if I made any misunderstanding or if there have anything else I can do for you.
Your patience is highly appreciated. Hope you a nice day and stay safe!
Best Regards,
Mia