TV app subscription events not syncing reliably with Klaviyo

I’m working on a TV app and want to use Klaviyo for lifecycle messaging based on user activity, such as when someone signs up, starts a subscription, renews, or cancels.

For anyone who has integrated a TV/streaming app with Klaviyo, what’s the cleanest way to structure these events and customer properties? I’m particularly interested in whether it’s better to send these events directly through the Klaviyo API or sync them through another platform.

Also, are there any common issues I should watch out for with duplicate events or keeping subscription status in sync?

Would appreciate hearing how others have approached this.