Bulk Export 422 Error on Digital Channel Metadata

I’ve spent hours trying to figure out why the Bulk Export API returns a 422 Unprocessable Entity when filtering for WebRTC softphone recordings in the legal hold queue. Voice calls export fine, but WebRTC assets fail consistently.

  • Verified the date range and query parameters match successful voice exports.
  • Checked that the S3 bucket permissions are correct and the bucket exists.

I normally fix this by ensuring the export request explicitly includes the ‘digital’ channel type in the filter object. The Bulk Export API defaults to voice unless specified. Check the payload structure against the documentation for digital assets. The 422 error often stems from missing required fields specific to WebRTC metadata schemas.