Why does this setting cause 400 Bad Request on Data Action payload?

Why does this setting trigger a 400 error when mapping agent_email to ServiceNow? The Architect flow (v2.4) sends valid JSON to the /api/v2/analytics/events/query endpoint, yet the webhook fails.

  • Genesys Cloud 2024-07
  • ServiceNow REST API v2
  • Data Action: Create Incident

The payload structure matches the docs, but the custom_attributes field returns null. Checking the debug logs shows the field exists in the conversation context. Is there a specific permission scope missing for nested object mapping?