Listen out for when a User confirms newsletter subscription

You'd have to check specifically if the SubscriptionApproved and the SubscriptionApprovalHash have specific values in them. For instance if the use is confirming the subscription and you have two events:

SubscriberNewsletterInfo.TYPEINFO.Events.Update.Before and SubscriberNewsletterInfo.TYPEINFO.Events.Update.After

You can check to see if the SubscriptionApproved = true in the before event, if it does not, then do something. Or you can check in the After event if you'd like. Just depends on what you want to do.

Thanks for that Brenden

So there's no single event that gets fired when a user approves their subscription?

I see if I can compare the before and after update events to see if SubscriptionApproved changes.

So yes and no to your question:

So there's no single event that gets fired when a user approves their subscription?

There is no specific event for "approve subscription". Yes, there is an event in which you can perform a check to see if it is approved, it's what I mentioned above.

Thanks for confirming that Brenden, much appreciated