The inventoryShipmentReceive mutation now requires an idempotencyKey field that prevents duplicate shipment receiving operations. You must provide an idempotency key with every request to ensure that repeated requests with the same key won't create duplicate inventory adjustments, helping you avoid accidental over-receiving of shipment items.
This is a companion discussion topic for the original entry at https://shopify.dev/changelog/inventory-shipment-receive-mutation-now-supports-idempotency