Office 2019 for Mac to enter reduced functionality mode in July
Microsoft will stop renewing the certificate for Office 2019 for Mac, causing the apps to run in reduced functionality mode starting July 13 (open files but cannot edit, save, or create). Users must upgrade to Office 2024 or Microsoft 365 to continue editing; Office 2021 for Mac will receive a certificate update, but Office 2019 cannot be updated to fix the issue.