Architect OAuth Grant Refresh - Token Endpoint Confusion

NICE CXone API & Integrations
1

so the architect flow’s OAuth grant is failing to refresh the access token - naturally. it’s hitting a 401 on the token endpoint after the initial grant succeeds. feels like someone designed this assuming tokens never expire, which is… optimistic.

here’s what i’ve checked:

  • Vault integration is solid - we’re rotating client secrets hourly with no issues on other integrations.
  • Using the Genesys Cloud SDK for Go v14.2.0 - shouldn’t be a SDK bug, right?
  • Architect flow configured with client ID, client secret (from Vault), authorization scope (oauth_auth:read, oauth_auth:write), and the token endpoint.
  • The initial token request works. it’s the refresh that’s bombing.
  • Double-checked the refresh token is being passed correctly in the refresh_token parameter.
  • Tried adding grant_type=refresh_token explicitly, just in case Architect is being… clever. still 401.
  • The error message is unhelpful: {"error":"invalid_client","error_description":"Invalid client credentials"}. which it isn’t.

it’s probably some weird quirk with how Architect handles the OAuth dance. anyone else running into this headache?

TL;DR: Architect OAuth refresh failing with 401, Vault/SDK seem fine. feels like a GC API design flaw.

1 Like
2

That’s rough - the ARCHITECT flow is finicky. We hit this last quarter - it’s almost always the SCOPE parameter on the TOKEN endpoint. Double-check you’re including ALL required SCOPES, and they’re EXACTLY as defined in the documentation.

{
 "grant_type": "refresh_token",
 "refresh_token": "YOUR_REFRESH_TOKEN",
 "client_id": "YOUR_CLIENT_ID",
 "client_secret": "YOUR_CLIENT_SECRET",
 "SCOPE": ["ACCOUNT:READ", "USER:READ", "CALLCENTER:READ"]
}
3

Is the refresh token actually being persisted somewhere accessible to the flow? We had a similar issue last month - turns out the data action wasn’t writing the initial token to the session variable correctly, so it was always trying to refresh with a blank value.

{
 "grant_type": "refresh_token",
 "refresh_token": "{{session.refresh_token}}",
 "client_id": "YOUR_CLIENT_ID",
 "client_secret": "YOUR_CLIENT_SECRET",
 "scope": ["ACCOUNT:READ", "USER:READ", "CALLCENTER:READ"]
}

YMMV, but double-check the session variable’s scope too - sometimes those get lost between steps.

2 Likes
4

At my last shop, we had a similar problem - the token refresh was failing, and it was really frustrating, honestly. What we found was that the SDK was encoding the SCOPE parameter incorrectly, adding extra characters that the token endpoint didn’t like. Try manually encoding the SCOPE parameter in the request body - instead of letting the SDK do it automatically - and see if that helps, it’s a small thing but can make a big difference.

5 
{
 "grant_type": "refresh_token",
 "refresh_token": "YOUR_REFRESH_TOKEN",
 "client_id": "YOUR_CLIENT_ID",
 "client_secret": "YOUR_CLIENT_SECRET",
 "SCOPE": ["ACCOUNT:READ", "USER:READ", "CALLCENTER:READ"]
}

fun one today. scope is the usual suspect, but the real KILLER is how quickly the refresh token itself expires - it’s not documented well at all. We’ve seen cases where the refresh token is invalidated after only 24 hours, which means you’re hitting that 401 far faster than expected, and the extra overhead of re-authenticating is SIGNIFICANT. Change short token lifetime → more SDK calls → slower reporting.

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