The Beijing Stock Exchange has mandated securities firms to undertake self-inspections to guarantee the seamless transition during the batch switch of securities codes. These self-inspections encompass various facets including the upgradation of technical systems, the assurance of transaction settlement, and the enhancement of investor services. Central to these inspections is the assessment of system compatibility, the maintenance of customer service continuity, and the robustness of the settlement system. Securities firms are tasked with ensuring the automatic migration of investor position codes, the comprehensive display of historical market data, and the intensification of investor communication and internal training programs. The ultimate goal of these self-inspections is to facilitate a smooth market transformation, bolster the recognition of the Beijing Stock Exchange sector, and attract a greater influx of high-quality enterprises and funds into the market.