First, no matter what company you are, as long as this business is included in the business scope of your company's business license, you can issue invoices to the other party. In short, those within the business scope can only be opened, and those not within the scope cannot be opened. Otherwise, if you don't issue an invoice according to the regulations, the national tax has the right to punish you.
Second, handling fees, business fees and management fees can all be used.