Scoping OAuth client to specific divisions for multi-tenant access

NICE CXone API & Integrations
1
  • Env: Rust 1.75, reqwest 0.11, Genesys Cloud API v2
  • Context: Multi-tenant BPO setup
  • Goal: Restrict client access to specific divisions

Quick question about scoping an OAuth client to specific divisions for multi-tenant BPO access.

We’re building a Rust service using reqwest and Tokio to fetch notification events. The current setup uses a standard Client Credentials grant, which works fine for global resources but we need to isolate access per tenant division.

I’ve tried setting the X-Genesys-Cloud-Division-Id header on requests, but the API returns a 403 Forbidden when trying to access /api/v2/notifications/events even though the token has the correct view:notifications scope. The division ID is definitely valid since I can access it via the admin UI.

Does the OAuth token itself need to be scoped to a division at issuance time? I’m currently just passing grant_type=client_credentials and the standard scopes. Is there a way to inject division constraints into the token payload or do I need to use a different grant flow?

Here’s the token request payload we’re using:

{
 "grant_type": "client_credentials",
 "client_id": "...",
 "client_secret": "..."
}

Any pointers on how to properly constrain the token’s effective division scope would be appreciated. Running into this wall in our staging env.