Get FIFO Layers

GET 
/api/v2/warehouse-transfers/:warehouseTransfer/fifo-layers

Returns the FIFO inventory layers for this warehouse transfer (paginated).

Required scope: warehouses:read

Grant this scope to your token under Settings → Developer → Personal Access Tokens.

Two layer types depending on the transfer's destination:

• Standard transfers (destination is a regular warehouse) return regular FifoLayer rows produced when the transfer was received. The origin object carries the polymorphic receipt-line link.
• Amazon inbound transfers (destination is an Amazon FBA/AWD warehouse — i.e. FBA inbound, AWD inbound, or AWD→FBA replenishment) don't produce regular FifoLayer rows; inventory enters Amazon and is tracked by AmazonFifoLayer. For these, the corresponding Amazon FIFO layers are returned in the same shape, each flagged with is_amazon: true, exposing source_label / source_reference (the Amazon source: ledger / discrepancy / initial inventory) in place of a receipt origin, plus a detail_route to the Amazon FIFO layer detail page. The Amazon layers are linked indirectly via the transfer's Amazon inbound shipment(s) (AmazonNewFbaInboundShipment.sku_link).

Query Parameters:

• per_page — Items per page (default: 15)
• filter[search] — Search by product SKU or name

Request

Responses

200

OK

Response Headers

Content-Type

401

Unauthenticated — the bearer token is missing, revoked, expired, or malformed. Never retry automatically; fix the credential. See the Errors guide.

403

Forbidden — the token lacks a required scope, the endpoint is not available to API tokens, or the user behind the token lacks the permission. A human must adjust the token scopes or user permissions; do not retry.

404

Not found — no record with the given identifier (or the route does not exist). Verify the ID before retrying.

429

Rate limited — platform limit is 1,000 requests/min; individual tokens may carry lower limits. Honor the Retry-After header before retrying. See the Rate Limits guide.