is there a way to get item fulfillments linked to an invoice? tried creating a saved search from one of the Suite Answers however coming across when an issue when the same item is across multiple invoices. even if filter to a specific invoice, the lines are duplicated for each invoice. is there a better way to get the an item fulfillment linked to an invoice?

There's no systematic relationship between Item Fulfillments and Invoices, so I'm not sure you'd be able to get there easily. The best option I've seen in the past is a custom field populated via script that references the linked Fulfillment on the Invoice and vice versa.