進奏院同藩鎮係互助互信嘅關係，經常為藩鎮爭取到最大嘅利益。喺文宗太和七年（833年），朝廷加盧龍節度使楊志誠為檢校吏部尚書，進奏官徐迪抗議話：「軍中不識朝廷之製，唯知尚書改僕射為遷，不知工部改吏部為美，敕使往，恐不得出。」 而遇著地方政權抗命，朝廷都會搵返進奏官開刀，好似喺大和元年（827年）成德節度使王庭湊幫助咗李同捷嘅叛亂，朝廷跟著就落旨話：「其上都進奏院，宜令御史臺、京兆府切加守捉，禁其出入，待敕後處分。」
The relationship between the Sogain and the feudal town is one of mutual assistance and mutual trust, and it often strives for the maximum benefit of the feudal town. In the seventh year of Wenzong Taihe (833), the imperial court Jialulong Jiedu made Yang Zhicheng the secretary of the school department, and Xu Di, the official of the march, protested: "The army does not know the system of the imperial court, only knows that the book is changed from servant shooting to relocation, and does not know that the Ministry of Industry is changed to the Ministry of Officials is beautiful. In the event of local political disobedience, the imperial court would also find the hands of the officials who entered the court, such as in the first year of Yamato (827), when the Chengde Festival made the royal court help Li Tongjie's rebellion, and the imperial court followed the decree: "All of them will enter the court, and it is advisable to order the Imperial Historical Observatory and the Jingzhao Mansion to guard and prohibit them from entering and leaving until they are punished." 」