Hello pro, glad to answer for you? Pro can not oh, big data will detect the invoicing ip address is abnormal, there is a possibility that it will be included in the abnormal. Tax Ukey is the identity authentication and information encryption device of the electronic invoice public **** service platform, which can help taxpayers to handle basic services such as issuance of VAT general invoices and electronic general invoices, tax filing, querying and uploading. I hope this service can help you, you can click on my avatar to pay attention to me, and then there are questions convenient to consult me again, and I look forward to serving you again. Wish you; happy life, all the best [warm][warm]