迅销公司：日本优衣库客户数量同比增长7.4%。

Group 1 - The core point of the article is that Fast Retailing, the parent company of Uniqlo, reported a 7.4% year-on-year increase in customer numbers in Japan [1] Group 2 - The increase in customer numbers indicates a positive trend for the company's performance in the domestic market [1] - This growth may reflect the effectiveness of the company's marketing strategies and product offerings [1] - The rise in customer numbers could potentially lead to increased sales and revenue for Fast Retailing in the upcoming quarters [1]