Genesyscloud_outbound_campaign deployment fails with 400 on AU-1

Need some help troubleshooting outbound campaign deployment.

Context:
Provider v1.22.0 on AU-1 BYOC. The genesyscloud_outbound_campaign resource fails during terraform apply with 400 Bad Request. No specific error details in API response.

Details:

  • Resource: genesyscloud_outbound_campaign
  • Provider: v1.22.0
  • Environment: AU-1 BYOC
  • Config: Standard dialing rules

HCL snippet:

resource "genesyscloud_outbound_campaign" "main" {
 name = "test-campaign"
}

Any ideas?