ServiceNow Data Action 400 Error on Digital Channel Trigger

Just noticed that a Data Action configured for ServiceNow Table API returns 400 when triggered by digital channel start.

  • Verified payload structure against ServiceNow docs; fields map correctly.
  • Tested endpoint via Postman; creation succeeds with identical headers.

Webhook logs show truncation on large JSON bodies. Is there a size limit or encoding issue with Genesys Cloud outbound calls to ServiceNow?