§8.22.

TRACK_STATUS_ERROR

The publisher sends a TRACK_STATUS_ERROR control message in response to a failed TRACK_STATUS message.

The TRACK_STATUS_ERROR message format is identical to the SUBSCRIBE_ERROR message (Section 8.9).

The publisher populates the fields of TRACK_STATUS_ERROR exactly as it would have populated a SUBSCRIBE_ERROR.

This is one section of the MoQT specification, rendered per-section for quick reference and citation. The authoritative text is draft-ietf-moq-transport-13 at the IETF.