According to the relevant information, it is impossible. If the tax item classification codes of purchase and sale projects are inconsistent, according to Article 22 of the Measures for the Administration of Invoices in People's Republic of China (PRC) and Article 11 of the Provisions on the Use of Special VAT Invoices, taxpayers do not choose the tax item classification codes of goods and services. If the invoice column is incomplete, the competent tax authorities will handle it according to the first paragraph of Article 35 of the Measures for the Administration of Invoices in People's Republic of China (PRC), and the tax authorities will order it to make corrections, and may impose a fine of 654.38+00000 yuan, and publicize the punishment. Therefore, it is best to keep the tax classification codes of input items and output items consistent.