get_media_buy_issue synchronously returns the latest seller-owned snapshot
of one issue created by
report_media_buy_issue.
It requires media_buy.issue_reporting: true. Poll this task with bounded
backoff to observe human acknowledgement and terminal resolution; an automated
reported receipt is not human acknowledgement. Poll sequentially so an older
in-flight response cannot overwrite a newer observation.
Request schema: get-media-buy-issue-request.json
outcome: "found" and carries the current issue.
A failure has outcome: "failed" and carries errors[], never issue.
reported has no acknowledgement or resolution fields. acknowledged requires
acknowledged_at. resolved additionally requires resolved_at and a
resolution summary. Resolution can explain why no seller change was warranted;
it does not assert buyer agreement or settle a delivery dispute.
The seller authorizes every read against the selected account and media buy.
An issue ID alone conveys no authority. Unknown, mismatched, and inaccessible
identifiers use the same REFERENCE_NOT_FOUND response. Reads never mutate
report state or restart the response clock. Sellers MUST keep open reports
readable after the buy is paused, canceled, or completed. This polling contract
does not imply a webhook subscription.