Business legality is a crucial element in the development of Micro, Small and Medium Enterprises (MSMEs) in Indonesia. Karangsari Village, as one of the MSME centers, is facing challenges in adopting Business Identification Numbers (NIB) and implementing digital marketing. This research aims to identify the impact of implementing NIB on MSMEs in Karangsari Village and explore the obstacles and opportunities in its implementation. The methods used are case studies and field surveys. The research results show that although NIB can improve legality and market access, low digital literacy is a major obstacle. It is hoped that the socialization and training carried out in Karangsari Village can increase understanding and adoption of NIB and digital marketing by MSMEs, so as to strengthen their competitiveness in the market.

SIDJIE is a Micro, Small and Medium Enterprise (MSME) engaged in food and beverage, especially coffee drinks. This place provides various types of food and drinks. On this occasion, through community service activities carried out to help MSMEs through several programs offered and have been compiled and discussed with interested parties. Starting from debriefing and assistance in preparing financial reports and digitizing promotions was chosen as an effort to help develop these MSMEs. After this activity, it is hoped that SIDJIE will find it easier to see the financial condition of its business so that in the future it can be even better at managing its business finances. Furthermore, with the marketing digitalization program, it is hoped that it will be able to increase public knowledge of this coffee shop business and indirectly increase SIDJIE's sales.