Notion Migration Deep Dive

Overview

Comprehensive migration patterns for moving data to, from, and between Notion workspaces. This covers rate-limited bulk import from CSV/JSON with property mapping, full database export with pagination and block content extraction, cross-database sync with duplicate detection, data transformation patterns for Confluence and Google Docs content, and post-migration validation with integrity checks. All patterns respect Notion's 3 requests/second rate limit.

Prerequisites

• @notionhq/client v2+ installed (npm install @notionhq/client)
• Python alternative: notion-client (pip install notion-client)
• p-queue for rate-limited concurrency (npm install p-queue)
• Source data access (CSV files, Confluence API, Google Docs API, etc.)
• Target Notion database(s) created with matching property schema

Instructions

Step 1: Import CSV/JSON into Notion Database

Map source data fields to Notion property types, create pages with rate limiting: