review_decided
HTTP 409Review already decidedManagement API
What happened
The item has already been approved or rejected.
How to fix it
To reverse an approval, undo it — undo is a complete reversal, not a second merge.
What you received
{
"type": "https://docs.sidelineexchange.com/errors/review_decided",
"title": "Review already decided",
"status": 409,
"detail": "…"
}Worth understanding
- Review queue — Proposed merges the resolver scored below the auto-merge threshold, shown with both sides, the facts and the evidence per signal.
- Mapping — A row saying “this source’s external id means this canonical entity”. Merging repoints mappings; it never mutates a canonical row.