> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usebracket.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Firestore primary keys

> How Bracket treats Firestore primary keys

## Summary

Bracket uses Firestore document ID values to uniquely map each document to the opposing data source. The user does not need to do any prep work to configure primary keys.