Core TSIs : Purchasing : Working with Purchasing : Generating a backorder
Generating a backorder
If an existing purchase order cannot be fully delivered by the supplier, you can generate a backorder, so that any undelivered items remain on order and are shipped as soon as they become available. The backorder is a copy of the original purchase order, but only for the part that could not be delivered. The original purchase order can subsequently be administratively completed for the delivered items, while the backorder takes care of the pending part of the order.
Good to know:
If required, you can create backorders on backorders.
If you have to cancel an existing backorder because it has become clear that the supplier is unable to deliver all the ordered products, a purchase suggestion will be made for the products not yet delivered. This allows you to create a new purchase order and to select another vendor to deliver these products.
Procedure
1. In the Purchasing TSI, go to the Purchases selection level
2. Select the purchase order for which a backorder is needed.
3. On the action panel, click Generate backorder.

A copy of the current purchase order is now created with the purchase order lines for the items that are yet to be delivered. In the elements list (in tree view), the backorder can be identified by the letter (B) behind the description.
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You cannot create a backorder if there are unconfirmed receipts on the purchase order.
When a backorder is generated:
The status of the backorder is set to Accepted.
The quantity in the purchase order lines of the backorder is set to what is still to be received.
The purchase order lines of the backorder are set to In progress.
The (undelivered) purchase order lines of the original purchase order are set to Completed.
On the original purchase order, the backorder details are displayed.
For a description of backorder fields, refer to Backorder details fields.