The Digital Union Application is a version of the Mobile Application for trade union work and operational management, built by the Vietnam Posts and Telecommunications Group to provide utilities such as receiving administrative documents, receiving handling work, receiving and processing meeting schedules, asking and answering questions, managing union members, electronic membership cards, communicating and interacting with members... contributing to improving the efficiency of interaction between union members and public officials professional staff at all levels.In addition, the application is also a digital transformation solution that effectively supports trade union work, helping officials to propagate and communicate issues related to trade unions, expertise, OSH, and legal education. accurate and timely in the 4.0 technology era.Community College; CDS; Union; Union College; CDS; Union CDS; Cong Doan; VNPT College; VNPT Union;