Help: Can't get SCIM provisioning to work with Okta

Everyone's raving about Hyperproof's compliance workflows but the core IT integration is broken. SCIM provisioning with Okta flat out doesn't work for us. Support just sends generic docs.

We followed their setup guide. The Okta app is configured, the SCIM bearer token is set, mappings look correct. When we try to sync a user, Okta logs show a `200 OK` but the user never appears in Hyperproof. No errors on their side either.

Here's the relevant part of our Okta profile mapping:
```json
{
"userName": "source.email",
"externalId": "source.userName",
"locale": "en",
"timezone": "America/New_York",
"active": true
}
```

Has anyone actually gotten this to work? What's the failure mode here? The logs imply success but the system is lying.