Which service method should be overridden in order to allow "without sharing" queries?

The service method that should be overridden in order to allow “without sharing” queries is ccrz.ccService.initSVCDAO. This method is responsible for initializing the service data access object (SVCDAO) that is used by the service class to perform queries. By overridingthis method, the user can specify the sharing mode of the SVCDAO, which will determine whether the queries respect or ignore the sharing rules of the current user. For example, ccrz.ccService.initSVCDAO(ccrz.ccAPI.SZ_WITHOUTSHARING) will initialize theSVCDAO with the without sharing mode. Salesforce References: B2B Commerce and D2C Commerce Developer Guide, Service Classes, ccService Class