请求这个借口 没有权限： https://api.mch.weixin.qq.com/v3/marketing/partner/product-coupon/product-coupons，

返回报错：请求错误:{"code":"NO_AUTH","message":"服务商没有此接口权限"}。

请求权限借口：https://api.mch.weixin.qq.com/v3/brand-basic/partner/brands/18309/product-authorities。返回结果:{"authorization_product":["BRAND_PRODUCT_AUTHORITY_MERCHANT_CARD","BRAND_PRODUCT_AUTHORITY_CARD_LINK","BRAND_PRODUCT_AUTHORITY_PRODUCT_COUPON","BRAND_PRODUCT_AUTHORITY_SHAKE_COUPON","BRAND_PRODUCT_AUTHORITY_BRAND_PAY_GIFT","BRAND_PRODUCT_AUTHORITY_BRAND_STORE","BRAND_PRODUCT_AUTHORITY_PAYMENT_MERCHANT_MANAGE","BRAND_PRODUCT_AUTHORITY_APPID_MANAGE","BRAND_PRODUCT_AUTHORITY_FINDER_MANAGE","BRAND_PRODUCT_AUTHORITY_CATEGORY_MANAGE"],"authorization_type":"AUTHORIZATION_TYPE_PARTLY","brand_id":"18309","update_time":"2026-02-10T18:22:41+08:00"} 返回是有权限集的。 是不是哪里没有开通