Get Amazon FBA shipping label PDF (presigned S3 URL)
Returns a presigned S3 URL for the Amazon FBA shipping labels PDF
attached to this transfer. Only valid for transfer_type: fba_inbound
transfers that have already been submitted to Amazon (the label S3
key is populated by submitTransfer during the SP-API
createInboundPlan call).
Non-FBA transfers return 400. FBA transfers without a label S3 key (e.g. submit failed) return 404.
The returned URL is valid for a short window (typically 5 to 15 minutes) and is single-use; re-call the endpoint to mint a new URL.
Requires inventory:read scope. (Note: this endpoint is also wired
under the fulfillment:read scope for callers whose key carries
fulfillment scopes but not inventory; both reach the same handler.)
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
Presigned label URL

