After migrating from Google Workspace to Microsoft 365, it's crucial to follow a post-migration checklist to ensure everything is functioning properly. Start by verifying that all emails, files, and data have been successfully transferred. Check user accounts and permissions to ensure they are correctly configured. Next, update DNS settings to point to Microsoft 365 services. Provide training for employees on using new tools like Outlook, Teams, and OneDrive. Finally, monitor the system for any issues and optimize the new environment for enhanced productivity. For expert guidance, Apps4Rent offers comprehensive support throughout the post-migration process.