Lot tracking and pick lists

Hi,
I have just started with a new company that uses lot tracking and I
haven't used it previously. Is there a reason that the lots in stock show
up for parts on the job pick list, but they aren't listed on the sales order
pick list? I may be missing something.
Thanks,
Judy Stauduhar
Synovis Interventional Solutions
jstauduhar@...
651-792-2874