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agentTools:
  projectIndex: https://apidocs.shipmonk.com/llms.txt
---

# v1.011

Adds `parent_order_key` to the shipment notification payload so integrators can identify the parent order for split orders.

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## 🚀 New Endpoints

*None*

## 📖 Documentation & Constraints Changes

* **Shipment Notification** payload: Added `parent_order_key` field. For split orders it contains the order key of the parent (original) order; for all other orders it is `null`. The existing `order_key` field is unchanged.