Can the search type in Syslog be used to accomplish this result?

Syslog cannot be used to launch a certification using the search results. Launching a certification in IdentityIQ is a process that involves interacting with the application’s certification module, where you define parameters, select users or roles, and initiate the certification campaign. This process requires using the IdentityIQ user interface or APIs, not the Syslog, which is purely for logging purposes.

SailPoint IdentityIQ Certification Guide

SailPoint IdentityIQ API and UI Guide