Converting a stock Item to stockless

We have been converting some of our stock items to a non-stock (stockless) Item.  We have already used these items in transactions (POs, Requisitions, etc.) when they were categorized as stock Items.  Although PeopleSoft allows us to convert the Items to non-stock in the Item component/page, we ran into some issues. In order to prevent some of these issues, we decided to finish all existing transactions for the stock Item before converting it to non-stock.

Is there anything else that needs to be done/completed before converting a stock item to stockless?

Thank you in advance.