Items In The Pub

I need an api to programatically update the inventory_item_status of an item in r12 pim i tried using ego_item_pubprocess_item , but i get an error. Items in the pub. Vine ripened tomato, sweet red onion, lettuce, dill pickle & pub 42 burger sauce add cheese $100 -american, swiss, pepper jack, mozzarella, provolone, bleu cheese, cheddar additional items -applewood bacon $150/saut