订货与合同（6.2.1）

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Purchase Order and Direct Pay (Disbursement)

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In general, the preferred method of ordering goods and services from registered suppliers at Boston University is via a Purchase Requisition (PR) using Guided BUying. 这使得大学可以利用已执行的采购订单（POs）来汇总购买力，并与供应商协商折扣价格和其他优惠条款和条件。

However, there are certain circumstances where alternate methods of ordering and payment are acceptable to allow efficiency and greater convenience. 这些方法包括低美元购买卡（PCard）交易（< 1,000美元），旅行卡用于旅行和娱乐费用，或支付（直接支付）交易。付款被描述为通过应付账款直接支付允许的货物。波士顿大学PCard，旅行卡和付款被定义为波士顿大学的替代支付方式。

不恰当地使用替代支付方式来代替正确执行的合同或POs可能会导致波士顿大学的重大成本。Purchases of products not listed below with alternate payment methods must be purchased via a Boston University PR/PO. Expenses incurred using the incorrect payment method are not reimbursable.

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请参阅订购方式矩阵，了解常用商品的清单以及首选和替代付款方式。

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