Outbound Campaign 'Blocked' Status with 423 Errors in Architect Flow

Hi all,

We are encountering a persistent issue with our outbound dialing campaign using Genesys Cloud Architect. The campaign is configured to use a standard dialing pattern, but a significant portion of calls (approx. 15-20%) are immediately terminating with a ‘Blocked’ status before any agent interaction occurs.

Upon reviewing the conversation detail views in the Performance dashboard, I notice these specific calls show a 423 Forbidden HTTP error in the interaction logs. The error message indicates that the number has been flagged for compliance reasons, yet these numbers are part of our verified opt-in list and have been scrubbed against the DNC registry.

I have checked the following:

  1. The Architect flow does not contain any explicit conditional logic that would reject these calls based on DNR or DNC status.
  2. The campaign settings have ‘Skip DNC’ and ‘Skip DNR’ enabled.
  3. The time zone settings for the campaign are correctly set to Europe/Paris to align with our business hours.

Interestingly, these 423 errors are not consistent across all agents. Some agents see a higher rate of these blocks compared to others, which suggests there might be a routing or session-based issue rather than a global list problem. I have also verified that the agent skills and wrap-up codes are correctly mapped in the performance views, so this is not a reporting artifact.

Could this be related to a recent update in the compliance engine or a misconfiguration in the outbound dialer settings? I have tried resetting the campaign and re-importing the contact list, but the issue persists. Any insights into what might trigger a 423 error in this context would be appreciated.

Thanks.