The Grand Secretariat consisted of four senior officials and 28 employees who served as secretaries, readers, and recorders and worked for almost the imperial government's documents and affairs.

[2] In 1820, emperor Minh Mạng dissolved the three secretaries, incorporated them into the new organ called Văn thư phòng–the predecessor of the Nội các.

However, the Văn thư phòng did not function as a legislature branch of the imperial court until 1829, when Minh Mạng reorganized it to become the Nội các.

[4] The seal knob of the Sung lý nội các sự vụ Quan phòng was shaped like a sitting Chinese guardian lion.

[5] The Sung lý nội các sự vụ Quan phòng was used until the year Thành Thái 4 (1892), afterwards and during the entire Duy Tân and Khải Định reign periods a seal with the inscription Sung biện Nội các sự vụ Quan phòng was used, this inscription was identical to the seal used since the Minh Mạng period, but the characters were written using a different style of calligraphy.