API Throttling: The Hidden Danger in Cloud Migrations

Understanding API Limits

When migrating terabytes of data, you are essentially hammering the APIs of both Microsoft and Google. If you push data too fast, the servers will protect themselves by 'throttling' your connection, resulting in HTTP 429 errors.

To prevent this, migration engines must use intelligent exponential backoff algorithms. By monitoring the response headers from Google Workspace, the migration engine can dynamically slow down the transfer rate just enough to avoid being temporarily banned, ensuring a steady, continuous stream of data over the weekend cutover.