Hi, Gail,
Turn Remember Form Settings on in your Company Profile, System Options tab of OE.
If the warehouse needs it sorted by Picking Sequence, when you print picking slips, set the 'Sort lines by' dropdown on the Printing Picking Slips window to 'Location/Picking sequence'.
If you want the items on invoices to print in the order they were entered, when you print invoices, set the 'Sort lines by' dropdown on the Printing Invoices window to 'Line number'.
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Regards,
Softrak Tech Support