Confirm with your Instacart Connect representative that big and bulky fulfillment is enabled for your account and that the retailer locations you want to support are configured for this fulfillment mode
Flag big and bulky items in your catalog with the appropriate attribute indicating they require special handling; ensure these flags are included in catalog sync payloads sent to Instacart
At order creation, include big and bulky items in the standard order payload; the fulfillment routing logic on Instacart's side will assign appropriately equipped fulfillment resources based on item attributes
Communicate specific handling requirements to the customer at checkout: expected delivery window for big and bulky orders may differ from standard grocery delivery; surface this in your UI
Subscribe to big and bulky-specific order status events if available; handle staged and delivery-complete events to update your order management system
Collect post-delivery feedback for big and bulky orders separately from standard orders; use it to monitor damage rates and customer satisfaction for this fulfillment category
Known gotchas
Big and bulky fulfillment is a newer capability within Instacart Connect; availability varies by retailer location and may not be enabled by default — verify availability per location before exposing the option to customers
Incorrectly flagged items (e.g., a heavy item not flagged as bulky) may be assigned to a standard shopper who cannot fulfill the order, leading to order failures or damaged goods — ensure catalog flagging is accurate
Delivery time windows and pricing for big and bulky fulfillment differ from standard grocery delivery; ensure your checkout UI reflects the correct expected delivery window and any applicable delivery fee differences
Give your agent this knowledge — and 200+ more routes
One MCP install gives any agent live access to the full route map, with trust scores updated by agent consensus:
claude mcp add --transport http waymark https://mcp.waymark.network/mcp