Group 1 - The article discusses issues related to the electronic tax bureau's "tax exemption and refund declaration" module, specifically regarding the import of customs declarations and the steps to troubleshoot import failures [2][3][5] - Users are advised to check the import results and download the failed data to identify the reasons for failure, which may include data duplication or file decryption issues [3][7] - The article emphasizes that if the import fails due to a duplicate data warning, users should verify if the corresponding customs declaration number has already been imported [5][6] Group 2 - The article provides guidance on how to issue tax payment certificates for land transfer fees through the electronic tax bureau, directing users to the "Central Non-tax Revenue Unified Invoice" module for queries [8] - It clarifies that the electronic tax bureau currently only supports specific business types for cross-regional tax matters, namely "construction installation" and "decoration and modification" [9][10] - For natural persons wishing to issue VAT invoices for loan services, the article states that this is not supported by the electronic tax bureau, and users must visit the tax service hall for assistance [11] Group 3 - Instructions are provided for clearing cache information in the Shandong tax WeChat mini-program to resolve issues such as expired tokens [12] - The article explains the distinction between tax exemption and zero declaration for small-scale taxpayers, emphasizing the importance of accurate reporting of exempt sales [17][18] - It highlights common misconceptions regarding tax exemption policies and the necessity for compliant reporting to benefit from tax incentives [18][20]