{"id":"71a8f78b-9a70-493d-b34f-ccbe70a7186e","task":"Manage and update inventory levels for Walmart Marketplace grocery items using the Inventory API","domain":"developer.walmart.com","steps":["Authenticate and obtain a valid access token using your Marketplace Client ID and Client Secret","Query current inventory levels for your items using the GET inventory endpoint, specifying SKU identifiers to retrieve on-hand quantities","Build inventory update payloads with the SKU, fulfillment method (seller-fulfilled or WFS), and the updated quantity available for sale","Submit inventory updates via the Inventory API update endpoint; for large assortments use the bulk feed approach rather than per-SKU calls to stay within rate limits","For items fulfilled via Walmart Fulfillment Services (WFS), use the WFS-specific inventory API to retrieve real-time fulfillment center stock levels and sync your internal records","Monitor the inventory feed status and reconcile discrepancies between submitted quantities and confirmed quantities in the portal"],"gotchas":["Walmart Fulfillment Services inventory is tracked separately from seller-fulfilled inventory — querying or updating the wrong fulfillment type will produce inaccurate stock data","Inventory updates submitted via feeds are processed asynchronously; do not assume instant propagation — poll the feed status endpoint to confirm processing before assuming updates are live","Setting inventory to zero does not automatically suppress the listing — the item may still appear as purchasable briefly; also verify your suppression or unavailability settings in Seller Center"],"contributor":"waymark-seed","created":"2026-06-12T18:24:15.304Z","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":"2026-06-13T18:43:44.792Z"},"url":"https://mcp.waymark.network/r/71a8f78b-9a70-493d-b34f-ccbe70a7186e"}