Correspondence is one of the most important formal communication media in an organization because it functions to convey information clearly, systematically, and well-documented so as to support smooth communication between departments. This study aims to determine the role of correspondence in improving the effectiveness of organizational communication, as well as identifying challenges and solutions applied in its management. The method used is descriptive qualitative with data collection through interviews, observations, and documentation studies in an organization. The results of the study indicate that correspondence is effective as a formal communication tool that supports coordination between departments, although there are several obstacles such as late delivery and incorrect letter formats. Solutions such as administrative training, use of electronic filing systems, letter writing guidelines, and supervision have been proven to help improve the quality of correspondence. With good management, correspondence contributes significantly to improving the effectiveness of organizational communication as a whole.

Correspondence administration activities play an important role in supporting the smooth operation of the school. At UPT SMP Negeri 27 Medan, manual management of correspondence previously caused various obstacles such as delays in letter distribution and difficulties in tracking archives. Therefore, a more effective and efficient correspondence management system is needed. This study aims to describe the implementation of a correspondence management system in improving administrative performance at UPT SMP Negeri 27 Medan. This study uses a qualitative descriptive approach with observation, interview, and documentation techniques. The results of the study indicate that the process of receiving and recording incoming letters has been running according to procedures and facilitates information management. The disposition of letters is carried out systematically and on target by the school leadership. The preparation and recording of outgoing letters is carried out by paying attention to good administrative rules. In addition, archiving, maintenance, and destruction of archives have begun to be carried out digitally, thereby increasing the efficiency and speed of administrative services.

The research in this journal article aims to determine the application of letter management standards in increasing the effectiveness of letter management. Therefore, it is necessary to manage letters well and correctly so that the letters can be well organized and the process of returning letters can be carried out effectively and efficiently. It is hoped that effective mail management can be carried out by the relevant staff in managing mail, both for incoming and outgoing mail. So, in researching this journal article, it can be seen that the application of letter management standards in increasing management effectiveness, that the management of incoming mail is divided into six stages which are important to know, namely: receiving letters, sorting letters, directing letters, recording letters, distributing letters and storing letters. Meanwhile, for managing outgoing letters, there are also six stages which include: creating a letter concept, typing, editing, affixing a letter address, folding and enclosing the letter and distributing the letter. The implementation of management has gone quite well, and currently the system is being transferred to an electronic system.