Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Dear Vimal,
Greetings! Thank you for posting in the Microsoft forum.
May I know if the following is the complete error?
Error: Something went wrong Your organization has deleted this device. To fix this, contact your system administrator and provide the error code 700003.
If so, based on my search it appears the error means that admin has deleted your device from the device management portal. To troubleshoot this kind of problem, I recommend you could type “Account” in search box to open your “Manage your account” setting panel, then go to "Access work or school" page to delete your account there, after a while, re-login to Microsoft 365 apps.
Also, check the following support article:
If my understanding above is not consistent with yours, you can also post back and point that out.
Your understanding and patience will be highly appreciated. I hope that you are keeping safe and well!
Sincerely,
Neha | Microsoft Community Moderator