Viva licencing - do all users need a licence for tracking of open rates for every internal recipient

Hi Samsul_Miah,

Open rates are part of personal insights and would be shown within Outlook in the Insights Outlook Add-in. In order to have this feature enabled the service plan required is a Viva Insights Subscription.

I don't believe that all recipients need to have a Viva Insights license assigned to them but they must be internal to your company.

Only certain types of emails are reported about and they must be sent to 5 or more recipients:

Viva Insights Outlook add-in reference | Microsoft Learn

Here are some resources about open rates with Viva Insights:

Use Microsoft Viva Insights in Outlook - Microsoft Support - 2nd option: "track email and document open rate"

Plans and environments for personal insights | Microsoft Learn