Ability to add the PO# (a standard field from the Sales Order Transaction) field in the Inventory Back Order Report.

The PO# field in the Inventory Back Order Report is labeled as Reference Number found in the Order Items Pending Fulfillments folder.

Here are the steps:

                1. Navigate to Reports > Inventory/Items > Inventory Back Order Report > Customize.

                2. In the Edit Columns tab, add Reference Number from the Order Items Pending Fulfillments folder.

                3. Click Save.