Explain that the invoice information issued was not directly uploaded to the tax bureau server. This situation is generally caused by network problems. Check whether the local network is connected to the external network. Invoice refers to the business vouchers issued and collected by all units and individuals in buying and selling goods, providing or receiving services and engaging in other business activities. It is the original basis of accounting, and it is also an important basis for law enforcement inspection by audit institutions and tax authorities. The contents of the invoice include the name, date, quantity and agreed price of the products or services provided to the buyer.