• Item Selection: Choose which items to return from the original order
• Quantity Adjustment: Return fewer items than purchased (e.g., return 2 of 4 items)
• Full Order Return: Select all items to return entire order
• Partial Order Return: Select specific items for partial return
• Multiple Returns: Process multiple returns on same order (e.g., customer returns items in two batches)
• Return Totals: System calculates subtotal, tax refund, and total refund amount

Return Tracking: Each return is assigned a unique return ID (format: RET-{orderId}-{returnNumber}). Returned quantities are tracked per line item. System prevents returning more than was originally purchased.