Assigning responsibility for updating item quantities Use this procedure to assign responsibility for defining the quantity to be billed each period for items that reset to zero after each billing period. Select Financials > Billing > Setup > Item Related Setup > Recurring Billing Item Operator. Select Actions > Create Recurring Invoice User Item. Specify this information: Company Select a company number. Operator Specify the login identifier of the operator. Item Select an item's identifier. Click Save.