如果订单物品没有库存，也不会到货，将调用另一个人员活动，以解决缺货的物品。

If the order items are not in stock and are not expected, another Human Activity is invoked to resolve the unavailable items.

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用户浏览和搜索内部网商店查找替代商品(或许通过与客户沟通确定)，可以修改订单，以替代缺货物品或删除此类物品。

The user can browse and search the Intranet shop for alternative products (perhaps while in contact with the customer), and can modify the order to replace or remove the unavailable items.

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或者，对订单进行修改，以处理缺货的物品，并按照其他后续条件履行订单。

Or, the order is modified to deal with unavailable items and fulfilled per the other post-conditions.

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