review_unmergeable
HTTP 409Review unmergeableManagement API
What happened
The proposed merge cannot be applied — typically because one side has since been merged into something else, so approving would build a chain.
How to fix it
Reject this item and, if the entities really are one, let the resolver propose the pair that now exists.
What you received
{
"type": "https://docs.sidelineexchange.com/errors/review_unmergeable",
"title": "Review unmergeable",
"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.