What role does Itzhak Stern play in making the list?

Itzhak Stern is Oskar Schindler’s Jewish accountant and office manager who plays a key role in creating “the list.” He compiles and organizes the names and paperwork, helps choose which Jews are designated as essential workers, liaises with Schindler and the Nazi officials, and manages the administrative work that turns Schindler’s intent into the formal roster that saved many lives. This description is from general/web knowledge (fallback) rather than the Recapy-provided context.