Starting September 30, 2024, classic Microsoft Viva Engage users in external networks and communities not connected to Microsoft 365 groups will need to download PDFs attached to Viva Engage threads to view them.
[How this will affect your organization:]
User interface changes
1. The Immersive view will display a generic preview with the message, “No preview available – click to download”:
2. The File view (Go to file > File view) will display a generic preview with the message, “No preview available – click to download”:
Features that will stay the same
1. As creators upload PDF files to their threads, they will continue to see the PDF thumbnail:
2. The PDF thumbnail will continue to be displayed in feeds:
[What you need to do to prepare:]
No action is required. We encourage you to inform your users of these changes.
Admins of classic Viva Engage networks are strongly encouraged to upgrade the network to Native Mode that allows users to continue reading PDFs inline, because all communities are connected to Microsoft 365 groups that support inline viewing experiences. Learn more: Overview of Native Mode for Microsoft 365 | Microsoft Learn
Source: Microsoft