Struggling to understand why the bulk export job for WhatsApp transcripts is failing immediately after submission. The system returns a 500 Internal Server Error when the request includes the pii_redaction filter set to true. This occurs specifically for digital channels configured with the latest compliance rules in our EU-West-1 environment. Standard audio recordings export without issue using the same credentials and API version.
The payload uses the Recording Export API v2 with Python SDK 2.14.0. The job creation endpoint /v2/recordingexport/jobs accepts the request but fails during the initial processing phase. The error response does not provide a detailed stack trace, only a generic server error message. We have verified that the service account has the necessary permissions for recording:export and conversation:read.
This issue is blocking our legal discovery workflow for Q3 audits. The metadata chain of custody requires all PII to be redacted at the source during export. Manual exports via the admin UI work correctly, but the API fails consistently. Any insights on known issues with the redaction engine for digital messaging transcripts would be appreciated.