We’ve made some enhancements to the existing Timeline API that will allow you to extend your software into HubSpot via a modal window. When creating a timeline event, you can now include details for an IFrame that can be opened from a link in the event. This allows you to show more dynamic data for events in the timeline.
This extension functionality won’t require any changes for existing integrations, and won’t require any additional setup for your timeline event types. Simply including the additional details for the IFrame will display the link in your events.
You can find the developer documentation for the Timeline Extensions here:
You can find more details and some existing examples for using Timeline Extensions here: