Hello Fritz Quizon, thanks for posting this in our community.
Microsoft Viva Amplify determines whether an email has been “opened” using signals collected via Microsoft Graph, which tracks user interactions across Microsoft 365 services. These signals are gathered only from licensed Viva Amplify users and are pulled from Microsoft Graph, which integrates with Outlook, SharePoint, and Teams. Viva Amplify does not store individual user data; instead, it provides counts and aggregated engagement metrics.
There are a few limitations to keep in mind. If the audience is too small or engagement is low, detailed breakdowns such as by location or department may not appear in the reports. Additionally, distribution channels like SharePoint may offer limited reaction types compared to Teams, which can affect how engagement is measured. Use reporting signals in Microsoft Viva Amplify
Kind regards,
John Oli