i need to get the fields like Qty on hand, Qty on order, Qty available, value, avg cost, on each location on my item master record.
I agree that using IEs can help expose the item location ids. You may also check on the link below since it has the same inquiry as yours, and hopefully this helps.
https://stackoverflow.com/questions/34936328/how-to-access-expose-inventory-item-locations-sublist-fields-in-suitescript
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