1. If it's just a current payment, the cashier will pay the other party, and the invoice receipt stamped with the other party's financial seal can be used as the payment voucher.

2. If it's expenses, etc. You must have a legal and compliant invoice within the prescribed time limit to be reimbursed. As for reimbursement, the boss should complete the relevant procedures, get the invoice on the reimbursement form, and ask the relevant manager for approval. If the unit needs accounting audit, it must be signed by the accounting audit before reimbursement can be made.