Why can't I find the verification code in the invoice?

State Taxation Administration of The People's Republic of China invoice verification code can't get out, probably because the root certificate is not installed correctly. If the root certificate is not installed correctly, the verification code will not be displayed normally. The failure to receive the verification code may be due to the arrears of the mobile phone, harassment and interception, full SMS storage and poor signal. You can see that the mobile phone may be in arrears, and you can't receive short messages after the mobile phone is in arrears, so it is the key to check whether the mobile phone is down first. May have been intercepted by harassment. You can also view the interception information of short messages. CAPTCHA is a public * * * automatic program, which is used to distinguish whether users are computers or people. Generally, you need to enter important information when registering or entering. In general, captcha can prevent malicious password cracking, ticket brushing and forum flooding, and effectively prevent hackers from constantly trying to log in to specific registered users by brute force cracking with specific programs.

Legal basis: Measures for the Administration of Invoices in People's Republic of China (PRC).

Twenty-first invoices that do not meet the requirements shall not be used as financial reimbursement vouchers, and any unit or individual has the right to refuse to use them.

Twenty-second invoices shall be issued in accordance with the prescribed time limit, sequence and columns, all of which shall be issued at one time and stamped with special invoices. If an individual's VAT invoice is not written in the header, it is an unqualified invoice with incomplete information and cannot be used as a financial reimbursement voucher.

Twenty-third units and individuals that install tax control devices shall use tax control devices to issue invoices in accordance with regulations, and submit invoice data to the competent tax authorities on schedule. When using non-tax-controlled electronic equipment to issue invoices, the software program description data of non-tax-controlled electronic equipment shall be reported to the competent tax authorities for the record, and the invoice data shall be saved and submitted in accordance with the regulations. The state promotes the use of online invoice management system to issue invoices, and the specific management measures shall be formulated by the competent tax authorities of the State Council.