Dear, I am happy to answer your question: The specific reasons for the failure of blockchain invoicing are as follows: 1. In the process of uploading invoices online, the tax digital certificate will be invalid when adding digital signature to electronic invoices. Second, the failure of the inspection system of the tax bureau will also lead to the failure of the inspection. These are caused by non-human factors, which are rare, but they are inevitable at present. Failed invoices must be voided and reissued, and cross-month invoices need to be reissued by the tax bureau stub. The specific operation process is as follows: Step 1: The page opens, and the prompt text is "Background Introduction" and "Advantages of Blockchain Electronic Invoice". Step 2: Click the application to open the agreement, and then click OK. Step 3: On the application page of blockchain electronic invoice, get the SMS verification code, and check the consent boxes "I agree and abide by the agreement of the enterprise to open blockchain electronic invoice" and "Our company promises to abide by relevant laws and regulations". Step 4: Successfully open.