Add a variant to a variant_parent product
Adds a new variant to an existing variant-parent product. Accepts the variant’s sku,
list_price, cost, weight, barcode, option value assignments, and an optional
pricing[] array for qty-break tiers. Validates that the option value combination is
unique within the parent. Idempotent via Idempotency-Key header.
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.
255Path Parameters
Body
The body is of type object.
Response
Variant created
The response is of type object.

