Letterbook Docs
Connect Supabase
Query Supabase tables for customer context inside Letterbook.
Last updated June 17, 2026
What this guide covers
Connect Supabase so Letterbook can reference customer, account, and usage data while drafting replies.
Setup steps
- Find the Supabase project URL
- Create or choose the right service credential
- Select the tables Letterbook can read
- Map customer identifiers
- Test row-level security behavior
Configuration details
- Recommended key type
- How row-level security affects queries
- Which tables should be excluded
- How to rotate credentials