Use the History tab to view the history of all versions of a requisition.

You can add new items to an order by adding the items to the requisition from which the order originated.

If Ariba Buyer is configured to push change and cancel orders to an Enterprise Resource Planning (ERP) system, you must always change and cancel orders in Ariba Buyer and not change or cancel them manually in the ERP. In addition, for best results, do not receive orders using the ERP; receive them using Ariba Buyer.

When a user receives items on an order that has a pending change or cancel order associated with it, the associated change or cancel order might become invalid, depending on the type of change. The original order has a status of Receiving or Received.

Typically, the Confirming/Shipping statuses in Ariba Buyer are equivalent to the Partially Confirmed/Partially Shipped statuses in Ariba SN; however, rejected and back ordered items are treated differently in Ariba Buyer and Ariba SN. See the Ariba Buyer Procurement Guide for more information.

If a requisition specified a Delay Purchase Until date, the requisition's status remains Approved until the date the related orders are actually sent to suppliers, at which time the requisition's status changes to Ordered. If you need to change an approved requisition during the time it is on hold, click Edit when viewing the requisition's details. Once the requisition's status changes to Ordered, use the Change button to change the requisition

Orders that have assigned PCard charges can be changed in some circumstances. Depending on your system configuration, you can change these orders in one of the following ways:

• You can change line item quantities or delete line items if an order's assigned PCard charges equal 0 (zero) or less. If the charges are greater than 0, you can only increase the line item quantities.
• You can change the line item quantities or delete line items so that the total value of an order’s line items is greater then the total assigned PCard Charges for the order.

After a requisition has been fully approved, Ariba Buyer generates orders and sends the orders to suppliers. At this point, users can change or cancel orders either by:

• Changing or canceling the requisition from which the orders originated, using the Change or Cancel button when viewing requisition details. Changing the requisition changes all related orders impacted by the change. Canceling the requisition cancels all related orders.
• Changing or canceling the orders, using the Change Order or Cancel Order button when viewing order details. These options are available only if your company supports them and, in that case, if you have the necessary permissions.

In both cases, a new version of the requisition is created and submitted for approval, based on the current approval rules. If the new version is fully approved, a new version of each order impacted by the change is generated and sent to suppliers. Note that your system administrator defines which fields generate new orders; it's possible to change some fields, such as accounting fields, without generating new orders to send to suppliers.

You can change or cancel requisitions with a status of Ordered. You can change or cancel orders whose status is one of the following; some statuses are only for orders processed using Ariba Supplier Network (Ariba SN).

To change or cancel orders generated from requisitions that you submitted, you must have the CancelPO or ChangePO permissions. To change or cancel orders generated from requisitions submitted by other users, you must have the CancelPO or ChangePO permission and the RequisitionChange permission. To search for specific orders to change or cancel, regardless of who submitted the orders, you must have the QueryAll permission.

Changing or canceling orders involves these basic steps (see the process flow diagram for a detailed description of the process):

1. An authorized user changes or cancels a requisition or order, thereby generating a new version of the requisition, and submits the new version for approval.
2. Ariba Buyer notifies designated approvers that the new version is waiting for their approval.
3. Approvers approve or deny the new version:
• If approved and the supplier accepts change or cancel orders, a replacement order (with the same order ID as the original order) is generated. The replacement order is sent to the supplier by direct order, Ariba SN, or ERP, if your company has enabled ERP push of change or cancel orders.
• If approved and the supplier does not accept change or cancel orders, you must cancel the original order (if the order's status is such that it can be canceled), and then create a new order either by adding items to the existing requisition or by creating a new requisition.
• If denied, the user can either edit and resubmit the new version for approval, or withdraw, edit, and then resubmit it.
4. When the user receives the items from the supplier, the user enters receipt details.