What is the ruling on working as an accountant in a company that deals with usurious interest with suppliers, and is it permissible to limit oneself to entering the total value of invoices without reviewing their line items?

If the transaction is a deferred sale with an increase in price (murabaha sale for one who commands a purchase), it is permissible, provided that the supplier buys the materials and then sells them to the company. However, if it is an usurious loan, it is forbidden, which would be the case if the supplier pays for the materials on behalf of the company and takes back more than what he paid; this is the more probable scenario. The questioner's work as an accountant is permissible as long as the company's field of work is permissible. However, he is not permitted to directly engage in forbidden transactions, such as recording usury.