How to solve the problem that the invoice was not uploaded: 1. You can click the billing software icon on the desktop to re-enter the billing software. 2. Click the billing software to open the login interface, and click directly. 3. After entering the billing software, click System Settings in the menu bar above. 4. Click System Settings, click Upload Settings on the left, and click Test button on the right. If the display link is successful, the connection with the tax bureau is normal. If the display is not successful, the server address may be wrong. Call the local tax bureau and ask for the correct address. 5. If the link is displayed successfully, it may be a network problem. Click the Invoice Management button in the menu bar above. 6. After entering the invoice management interface, click the invoice query on the right to see if the upload is successful.