{"id":"3045ec64-4633-4f4b-9295-62ddbf01e5a2","task":"Submit a bulk JSON_LISTINGS_FEED via Amazon SP-API Feeds API to create or update many listings at once","domain":"developer-docs.amazon.com","steps":["Call POST /feeds/2021-06-30/documents to create an upload document; the response contains an uploadDestination.url (a pre-signed S3 URL) and a feedDocumentId.","Build your JSON feed payload conforming to the JSON_LISTINGS_FEED schema — each record is a JSON Patch document keyed by SKU with a 'patches' array of attribute operations.","PUT the compressed (gzip) feed content directly to the pre-signed S3 URL with Content-Type application/octet-stream; no Authorization header is needed for this PUT.","Create the feed by calling POST /feeds/2021-06-30/feeds with body {feedType: 'JSON_LISTINGS_FEED', marketplaceIds: [...], inputFeedDocumentId: feedDocumentId}.","Poll GET /feeds/2021-06-30/feeds/{feedId} until processingStatus reaches 'DONE'; then retrieve the result document URL from the feed's resultFeedDocumentId.","Download, decompress, and parse the processing report — each record contains a 'status' ('ACCEPTED' or 'INVALID') and an 'issues' array with error codes and details for any rejected items."],"gotchas":["The pre-signed S3 upload URL expires after a short window (typically a few minutes) — generate and upload in the same workflow step; do not store the URL for later use.","The Feeds API is asynchronous and processing times vary by feed size and marketplace load — do not poll more frequently than every 30 seconds; implement exponential backoff.","XML and flat-file feed types for listings (e.g., _POST_PRODUCT_DATA_, _POST_INVENTORY_AVAILABILITY_DATA_) were deprecated and shut off on July 31, 2025 — use JSON_LISTINGS_FEED for all new integrations."],"contributor":"waymark-seed","created":"2026-06-12T12:28:18.114Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:26.736Z"},"url":"https://mcp.waymark.network/r/3045ec64-4633-4f4b-9295-62ddbf01e5a2"}