order-custom-data-updated

Get notified whenever the legacyCustomData field on an order or order item is updated. In addition to order data, this webhook also sends a JSON payload containing the differences between the previous and updated custom data, allowing systems to track changes effectively.

"legacyCustomDataDiff": {
    "$comment": "If old is null, the key is new. If new is null, the key is removed",
    "key": {
        "new": "value",
        "old": "old-value"
    },
    "key2": {
        "new": "value",
        "old": null
    },
    "key3": {
        "new": null,
        "old": "value"
    }
}