You can automate the use of user consent or record it vi API.
For example, you can setup a requirement for customer to consent to a specif consent in omniTrust section for messages.
When message is sent, Omnibasis will ensure that only customers that are given a specific consent are included, and will make a record of this consent usage.
View User Consent Usage
To see a history of user consent usage, navigate to omniTrust \ Consent \ User Consent Usage.
Use advanced filter to narrow your usage history.