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PUT
overrides) without touching any other field — the save path behind the visual mapping editor. Validate-before-publish is enforced: an overlay with blocking errors is rejected. An empty overlay clears it.

Path parameters

string
required
Partner ID

Request body

PartnerOverlay
ElementOverride[]
Force an element’s value on the first matching segment of an outbound transaction (optionally scoped to a set) — e.g. a fixed qualifier.
OverlaySegment[]
Extra segments appended to outbound transactions (optionally scoped to a transaction set) — e.g. a partner-required REF/N9/DTM.

Response

No response body — overlay saved (returns the redacted partner + validation warnings).

Status codes