Title: On the Whittaker Plancherel Theorem for Real Reductive Groups,
Abstract: The main purpose of this article is to fix several aspects aspects of the
proof of the Whittaker Plancherel Theorem in Real Reductive Groups II that are
affected by recently observed errors or gaps . In the process of completing the
proof of the theorem the paper also gives an exposition of its structure, and
adds some clarifying new results. It also outlines the steps in the proof of
the Harish-Chandra Plancherel theorem as they are needed in our proof of the
Whittaker version.