Some help on a left join please.

I have a table of shortages , and a table of outstanding orders.

I can do a left join to list the shortages and show outstanding orders
where they exist - simplifying

Select s.stock_code,o.orderno,o.duedate
from shortages s left join orders o on s.stock_code=o.stock_code

The only issue with this is that if there are several outstanding
orders for a specific part I get one line/record for each order -
which is confusing some users.

Is there a way to restrict the join to only one match (eg the order
with the lowest duedate)?