Primer: How to Use JSON Batching to Speed up Graph Processing
JSON batching is one of the most effective ways to speed up the processing of Graph API requests. Although it might seem complicated, once you understand how batches are put together and submitted to the Graph batch endpoint, it’s not that hard. JSON batching is of particular interest to large Microsoft 365 tenants that might need to process tens of thousands of accounts, mailboxes, groups, and so on. All explained here, along with a PowerShell script to show how it’s done.