1, the amount is limited.

2. Limited resources and overloaded servers.

2. Invoice refers to the written proof of receipt and payment provided by all units and individuals in the purchase and sale of commodities, provision of labor services or acceptance of labor services and other business activities. It is the legal proof of financial revenue and expenditure, the original basis of accounting, and an important basis for law enforcement inspection by audit institutions and tax authorities. It is divided into: ordinary invoices and special invoices for value-added tax.

Three, the network invoice is the unified standard invoice of the State Administration of Taxation. The first "online invoice" was issued by Wu 'an Branch of Hebei Xinxing Jihua Group in 20 12.