Get ready for your practice. Easy to understand instructions on company response. While the invoice system begins on October 1, 2023, it is very few people know what actually takes and how the impact is to work. If you do not understand the invoice system now, it will be in your hand just before the beginning of the next year. Therefore, this DVD will provide an explanation of what you need to pay attention to the basic parts of the invoice system and provide you with an easy-to-understand explanation. In addition, 1. Introduction of the Invoice System, 2. What a customer will do when they are taxed vendors, 3. What is the information of invoice registration, 5. What is the invoice statement, 6. What should I do when I do not receive an invoice, 7. How to do when the seller is not invoice? 8. What to do when not? 9. The contents include what to do when the invoice is incorrect, and what to do when the value is drawn out.