SAML SSO conflicts with OAuth client credentials for Python ETL

NICE CXone API & Integrations
1

I can’t seem to figure out why my Python ETL pipeline fails to acquire an access token after we enforced SAML SSO for all human users. We are using the genesys-cloud-python SDK to pull aggregate analytics data. The script uses the client credentials grant flow with a machine-to-machine user.

The error is immediate:

requests.exceptions.HTTPError: 403 Client Error: Forbidden for url: https://api.mypurecloud.com/oauth/token

The response JSON is:

{
 "error": "invalid_grant",
 "error_description": "The client credentials are invalid or the grant type is not supported."
}

I assumed SAML only affects interactive login. However, the admin console shows the machine user is locked. I need to know if there is a specific API endpoint or configuration flag to whitelist OAuth clients from SAML enforcement. I am in Asia/Seoul and need this fixed for the morning batch run.

  1. Verify client ID and secret in environment variables.
  2. Check user status via /api/v2/users/{id}.
  3. Attempt token refresh.

None of this works. How do I decouple programmatic access from the SAML policy?

Thanks for the help.

2

SAML does not affect machine users. The 403 means scope mismatch. Ensure your OAuth2 client has analytics:report:read or analytics:conversation:read. Verify the token via POST /api/v2/oauth2/token and decode the JWT. If scopes are correct, check Role permissions for the machine user. It needs a role with explicit analytics read access.

3

have you tried checking the role permissions on the machine user? the suggestion above is correct, saml doesn’t touch m2m, so it’s definitely a scope or role issue.

4

The documentation actually says SAML strictly applies to interactive human login flows, so machine-to-machine tokens remain unaffected. The 403 is almost certainly a role permission gap on the machine user itself. Even with the correct OAuth client scopes like analytics:report:read, the underlying user requires a role that grants those permissions.

I usually verify this by decoding the JWT from /api/v2/oauth2/token to confirm the scope claim matches your API needs. Then I cross-reference the sub claim in the token against the user’s assigned roles in Admin. If the role lacks the specific analytics resource permissions, the API rejects the request regardless of the token validity.

Here is a quick check using the Python SDK to validate the token structure before hitting the analytics endpoint:

from purecloudplatformclientv2 import PlatformClient

platform_client = PlatformClient()
token = platform_client.get_token_from_client_credentials()
print(platform_client.decode_token(token)) # Inspect 'scope' and 'permissions'

Ensure the machine user’s role is explicitly checked for Read Analytics Reports.

5

To fix this easily, this is to verify the machine user’s role permissions directly, as SAML SSO does not impact M2M flows.

requests.exceptions.HTTPError: 403 Client Error: Forbidden for url: https://api.mypurecloud

Use the following curl command to decode the token and confirm the analytics:report:read scope is present in the scope claim.

curl -X POST "https://api.mypurecloud.com/api/v2/oauth2/token" \
 -H "Content-Type: application/x-www-form-urlencoded" \
 -d "grant_type=client_credentials&client_id=YOUR_CLIENT_ID&client_secret=YOUR_CLIENT_SECRET&scope=analytics:report:read"