 Metcalfe first met the future Edward VIII when, as Prince of Wales, he was touring India in 1922.Edward was impressed with Metcalfe's knowledge of horses and made him a member of his personal staff, appointing him an aide de camp; he subsequently accompanied the prince on his tour of Japan.In July 1922, in the wake of the Prince's tour, he was appointed a Member of the Royal Victorian Order, 4th class, and in August 1922 was appointed as temporary equerry to the Prince of Wales.