In this article, the authors attempt to substantiate the main methodological approaches and principles of customization of the system of formation of a network communicative culture and digital etiquette of teachers and students in the online community of the university, including traditional system-activity, qualification, competence-based acmeological, environmental approaches. The article actualizes a relatively new customized approach not just to the organization of the educational process, but specifically to the formation of a network communicative culture (CCM) and digital etiquette (CE) of teachers and students in the online community (online communities) organized in a higher educational institution. The authors also tried to focus on the disclosure of the issue of individualization of products created as part of the implementation of educational programs and open educational resources supported by procedures (including rules, regulations) CCM and CE universities. By generalizing various sources, the principles of the formation of a network communicative culture and digital etiquette of teachers and students in the online community of the university, adapted in the context of the desired problem, are revealed.