def METHOD_NAME(request_data):
    """
    Fulfill an order for enrollment code purchase by B2B entities.
    Args:
        request_data (dict): Request data from CyberSource
    """
    # First, save this information in a receipt
    receipt = B2BReceipt.objects.create(data=request_data)
    # Link the order with the receipt if we can parse it
    reference_number = request_data["req_reference_number"]
    order = B2BOrder.objects.get_by_reference_number(reference_number)
    receipt.order = order
    receipt.save()
    new_order_status = determine_order_status_change(order, request_data["decision"])
    if new_order_status is None:
        # This is a duplicate message, ignore since it's already handled
        return
    order.status = new_order_status
    if new_order_status == B2BOrder.FULFILLED:
        complete_b2b_order(order)
    # Save to log everything to an audit table including enrollments created in complete_order
    order.save_and_log(None)
    sync_hubspot_b2b_deal(order)