Joke Collection Website - Public benefit messages - Why is there a text message saying that the invoice is issued?

Why is there a text message saying that the invoice is issued?

The significance of invoicing. The Zhejiang Provincial Taxation Bureau sent a message saying that the water distribution in Tonglu County has been invoiced, which means invoicing. 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, and is the original basis of accounting.