Hubspot and Intercom are very successful companies. And on the exact same type of communication to their customer, they choose two completely different approaches.
One is before, the other is after.
One raises awareness, the other raises alarm.
One gives you agency, the other takes it away.
One is about hope (“Your contacts database is growing”), the other is about failure (“You’ve exceeded the usage”).
Also (you can’t say that from the message alone, but I’ll ask you to trust me), one is true, the other is not.
There is no right or wrong way to do stuff.
But the choices you make say a lot about who you are and what you stand for.