Update a vendor relationship (allowlist PATCH)
Updates one or more fields on an existing product-vendor relationship. All body fields are
optional; supply only the fields to change. Changing is_preferred: true automatically
demotes the previous preferred vendor for this product.
Requires products:write scope.
Authorizations
API key issued per entity via Settings > Developers > API Keys.
Each key carries scopes (e.g. orders:read, products:write).
Bearer token format: Authorization: Bearer ark_live_ent_Test keys use ark_test_ent_. Both are issued per entity
via Settings > Developers > API Keys.
Headers
Client-generated unique key for idempotent POST/PATCH/DELETE operations. Alias for the Idempotency parameter. Max 255 chars. On retry with the same key, the original response is returned without re-executing the operation. Keys expire after 24 hours.
255Body
The body is of type object.
Response
Updated vendor relationship
The response is of type object.

