Dynamics 365 Customer Insights - Journeys – Create static segments with up to 200,000 members

We are announcing the ability to create static segments with up to 200,000 members in Dynamics 365 Customer Insights - Journeys. This feature will reach general availability on March 31, 2026.

How does this affect me?
This feature allows users to quickly create static segments with up to 200,000 members per static group. Static segments can be created by:

• Uploading a CSV file to match contacts or leads in Dataverse.
• Using the API to upload a CSV file and match contacts or leads.

To define static segment membership using a CSV file, create a contact or lead-based segment, then go to + Add a new group > Upload CSV.

What action do I need to take?
This message is for awareness, and no action is required.

If you would like more information on this feature, please visit Create static segments with up to 200,000 members.