Hello, dear! I'm glad to answer your question: How to query historical invoices A: Management-Invoice query, you can see the information of invoices, and select the year and month in the upper left corner for convenient and quick query. The ticketing computer has been redesigned and the new system will re-store the data. Go to invoice management-invoice maintenance, and the data can be restored. Invoice Maintenance: select year, month or year data for maintenance. Re-enter the invoice query and check the record.