If your use case requires this data in Funnel, you can request it as a custom connector.
Custom connectors and data requests are available only in Business and Enterprise plans.
Messages Report
Dimensions
Message ID: A unique identifier assigned to each email message.
Date: The date the email was sent, formatted as YYYY-MM-DD.
Message Title: The internal title given to the email message within Act-On.
Message Subject: The subject line of the email as seen by recipients.
Metrics
Sent: The total number of email addresses to which the message was sent.
Opened: The number of unique recipients who opened the email.
Clicked: The number of unique recipients who clicked on any link within the email.
How to request this data
To request ActOn data and other data that has not been covered here, submit a data request.