From our experience, the first few steps that anyone can get started with are:
1. Sync Braze to Amplitude
2. Read through every data schema one by one. There seems to be a ton of data available, but once you start reading through it, you realize many many tables are very repetitive, and you start to get familiar with the fields available in Amplitude.
Every single message interaction is logged, so it's a matter of grouping by Campaign IDs, and filtering for users who performed certain actions.
DavidO's point about naming conventions is crucial as well!
Here's the Braze docs that we've read through hundreds of times: https://www.braze.com/docs/user_guide/data/braze_currents/event_glossary/message_engagement_events/?tab=amplitude
