SAML SSO vs OAuth Client Credentials for internal services

Hey everyone, quick question on the correct flow here. We’re rolling out SAML SSO for our agents, which is great for the desktop experience. But I have a backend Node.js service that needs to update interaction data via the API. I want to make sure I’m not mixing patterns incorrectly.

Currently, the service uses a standard OAuth Client Credentials grant. It hits POST /api/v2/oauth/token with the client ID and secret, gets a bearer token, and uses that for subsequent calls. This works fine, but now that SAML is live, I’m worried this might be flagged or break if we enforce SAML-only login policies at the org level.

Is it safe to keep using the client credentials flow for server-to-server calls even when SAML is enabled for users? Or do I need to switch to a different auth method? I checked the docs, and they mention that SAML affects user login, not necessarily service accounts. But I want to be sure before I lock this down in production.

Here’s the snippet I’m using to get the token:

const getToken = async () => {
 const response = await fetch('https://api.mypurecloud.com/api/v2/oauth/token', {
 method: 'POST',
 headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
 body: new URLSearchParams({
 grant_type: 'client_credentials',
 client_id: process.env.GENESYS_CLIENT_ID,
 client_secret: process.env.GENESYS_CLIENT_SECRET
 })
 });
 return response.json();
};

Does this still work? Or am I missing something obvious about how SAML impacts OAuth clients?