No, you should only deploy SEGWs at the main entrances of your venue. Sub-unit level shops should not deploy SEGWs if they are not amongst the list of venues required to implement SEGW for check-ins. A retail shop in a hotel need not deploy SEGW but a restaurant in a hotel would need to deploy SEGW.
Small retail stores (<10,000 sqft or 930sqm), such as pharmacies, convenience stores that are not required to implement SE check-in, but have voluntarily done so, should remove their SE check-ins to increase convenience for their patrons.
Workplaces that wish to implement SEGW may download/update the SafeEntry (Business) app and use the SEGW function. If they wish to apply for the hardware SEGW device, please look out for further announcements on go.gov.sg/gateway-overview.