Avoiding Restrictions When Bulk Messaging

I finally got approved by Meta to send Whatsapp messages using the API.

I want to avoid getting blocked and I need tips.

**My use case:**

I have an app that sends wedding invites to a list of \~200 users a day.

I send an approved template, to clients I never had a conversation with. The message includes a link.

How do i avoid getting restricted?

For example, how many messages should I send in 1 hour? Should I send all the 200 message instantly? Does it matter?

I don't expect any user to report my messages, because they expect this message. But I want to keep a good Whatsapp rating