Retrieve a single transfer (with items, GL refs, lifecycle timestamps)
Returns the full detail of a single transfer by ID: header
(entity_from_id, entity_to_id, location_from_id, location_to_id,
transfer_number, status, transfer_type, requires_approval,
gl_ship_je_id, gl_receive_je_id, gl_posted, shipped_at, received_at,
approved_by, approved_at, rejected_by, rejected_at) plus the hydrated
items array. Layer 1 enforced: the API key entity must be either
entity_from_id or entity_to_id.
Requires inventory:read 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.
Path Parameters
Response
Transfer object with items

