Managing your purchase orders - AWS Billing and Cost Management

Managing your purchase orders

Purchase order is in public preview for AWS Billing and Cost Management and is subject to change. Your use of purchase orders is subject to the Preview Service Participation terms of the AWS Service Terms (Section 1.10).

You can use your Billing and Cost Management console to manage your purchase orders and configure how they reflect on your invoices. You have the option to add multiple purchase orders with multiple line items. Based on your configurations, we select the purchase order that best matches with your invoice. You can manage purchase orders if you're using a regular AWS account or an AWS Organizations master account.

Each purchase order can have several line items, and every line item is used for matching with invoices. The following types of line items are available:

  • ALL – All charges on your AWS account.

  • AWS Monthly Usage – Your AWS monthly invoice charges.

  • AWS Subscription Purchase – Your subscription invoice charges; for example, upfront charges for Reserved Instances (RI) and AWS Support charges.

  • AWS Marketplace Purchase – Your AWS Marketplace invoice charges. This is only available for the AWS Inc. entity, because all AWS Marketplace invoices are generated from AWS Inc.

Many criteria and parameters are used to determine the optimal purchase order for your invoices. You can create up to 100 active purchase orders with up to 100 line items for each regular account or AWS Organizations master account.

When an invoice is generated, all purchase orders that are added to your master account are considered for association. Then, expired or suspended purchase orders are filtered out, leaving only the active purchase orders. Your invoice’s billing entity is matched with the “Bill from” entity in your purchase order, filtering out those that don’t match. For example, you have purchase orders added for an AWS Inc. entity (PO-1), and one for the AWS EMEA SARL entity (PO-2). If you purchase a Reserved Instance from AWS Europe, only PO-1 will be considered for invoice association.

Next, we evaluate line item configurations to determine the best fit for your invoice. To be matched with a line item, the invoice's creation date must be within the line item's start and end month, and it must also match the line item type. If multiple line items match, we use the line item with the most specific type for invoice association. For example, if you have an RI invoice, we use the subscription line item instead of ALL if both are configured.

Lastly, the line items with enough balance to cover your invoice amount are selected above the out of balance line items. If line items that belong to multiple purchase orders match all criteria precisely, we use the purchase order that was most recently updated to match the invoice.