Hi Leslie,
Thank you for your prompt reply. Besides GL Posting Date and Fulfillment Date from Sales Transaction, there is a column called Fulfillment Date I can add to the Sales Line Items Smartlist. I usually run Sales Line Item smartlist, adding GL Posting Date and Fulfillment Date from Sales Transaction column, to see which invoices are fulfilled in the same reporting month. Today, I just saw Fulfillment Date column and noticed they are different from Fulfillment Date from Sales Transaction for some invoices.
Thanks,
Nhi