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Inventory > Back Orders > Process Back Orders - Jiwa 7 - this will process all backorders for selected Document Types/Warehouse/Invoices/Inventory Items in FIFO order
Inventory > Back Orders > Manual Back Order Release - select the order of allocation of stock to sales order back orders (Beth's favourite)
Inventory > Back Orders > Back Order Allocations - Arrange the Sales orders in order of allocation for a single inventory item
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