Shanghai citizens are required to scan the "venue code" or get checks by the "digital sentry," or a comprehensive code scanning and temperature check machine, to enter or leave public venues and communities.

Some public sites will also require a 48-hour negative PCR test report, according to the city's big data center.

Foreign residents can apply for the Suishenma health code with their passport through the Suishenban app. It will take one workday for manual verification and approval. They can also bond their Chinese bank cards with Suishenban micro app on Alipay to get the code.