generated: '2026-06-20'
method: searched
source: https://developer.microsoft.com/en-us/microsoft-365/dev-program
description: >-
  Microsoft 365 provides a free developer sandbox rather than per-request test
  credentials. The Microsoft 365 Developer Program grants a configurable,
  isolated Microsoft 365 E5 tenant preloaded with sample users and data, used to
  exercise Graph / Office 365 APIs without touching a production tenant. There
  are no published magic test card/identifier values for this API.
sandbox:
  type: isolated-tenant
  name: Microsoft 365 Developer Program (E5 sandbox subscription)
  signup: https://developer.microsoft.com/en-us/microsoft-365/dev-program
  docs: https://learn.microsoft.com/en-us/office/developer-program/microsoft-365-developer-program
  characteristics:
    - Free Microsoft 365 E5 developer subscription, renewable while actively developing.
    - Isolated tenant separate from any production Microsoft 365 organization.
    - Option to install sample data packs (sample users, mailboxes, files, Teams content).
    - Same graph.microsoft.com endpoints and Entra ID OAuth as production — no separate sandbox base URL.
  auth:
    identity_host: https://login.microsoftonline.com
    note: >-
      Register an app in the sandbox tenant's Entra ID; the tenant GUID replaces
      "common" in the authorize/token URLs for tenant-scoped flows.
  test_values_published: false
graph_explorer:
  url: https://developer.microsoft.com/en-us/graph/graph-explorer
  note: >-
    Graph Explorer runs live Graph requests against a shared Microsoft demo
    tenant (or your own), the interactive equivalent of a try-it sandbox.