Statistical analyses indicate a growing penetration of social media among young people. Research shows that youth spend a significant portion of their time online, which creates a need for youth workers to possess advanced social media skills in order to effectively engage with young people and build relationships. Unfortunately, as many as 43% of young people lack the knowledge of how to use social media consciously and effectively (based on a study conducted by the We are for U Foundation on a group of 3,000 individuals aged 15–18 between 06.2023 and 09.2023). This results from the fact that they do not have access to good practices, and adults do not possess the appropriate skills and knowledge to support them. A study conducted by the International Labour Organization shows that skills related to social media management and digital marketing are becoming increasingly sought after by employers. There is a growing demand for specialists with these competencies, which confirms the need to implement the project. The selection of organizations participating in the project is not accidental. According to them, the percentage of people aged 16–74 using social media in the respective countries is as follows: Italy: 73% of people aged 16–74 Poland: 69% of people aged 16–74 Albania: 39% of people aged 16–74 Portugal: 76% of people aged 16–74 Romania: 44% of people aged 16–74 Hungary: 81% of people aged 16–74 Spain: 83% of people aged 16–74 In selecting partner organizations, we were guided primarily by three key issues essential to the project’s implementation: Eurostat data as indicated above – regarding the use of social media. Confirmation by the participating organizations of the same or similar problems within their areas of activity in terms of limited skills and knowledge on how to use social media effectively and consciously. High motivation of the team / organization members to carry out high-quality activities. This is particularly important to us, as one of the most important values of the We are for U Foundation is professionalism. The objective of Social Media Mastery. International cooperation in digital transformation and marketing is to enable 28 youth workers from 7 countries to acquire social media and digital transformation skills through cooperation and knowledge exchange within the framework of mobility activities. “Social Media Mastery” is also a response to the growing demand for specialists in the field of social media and digital marketing. Secondary objectives: Strengthening the capacity of youth institutions to effectively use social media and digital tools in working with young people, and promoting innovative marketing strategies. Providing youth workers with the necessary skills to meet these demands and develop their professional careers. Reducing disparities between different regions, particularly European Union countries, in terms of digital skills. Promoting a culture of continuous self-education in the digital field. Exchanging experiences and developing the competencies of youth workers at the international level. Learning about good practices and tools for educating young people in combating digital disinformation. Analyzing the best tools and methods for working with youth based on non-formal education. Strengthening cooperation in an international environment. Promoting European Union values and the Erasmus+ programme at local, regional, and supra-regional levels. The Social Media Mastery project will provide youth workers with the necessary skills to meet these requirements and develop their professional careers. Together with partner organizations and the We are for U Foundation, by learning about digitalization, entrepreneurship, creativity, and openness to other nations, we aim to build trust among both young people and adult citizens. We expect that the knowledge gained and skills acquired within the project will translate into concrete outcomes and actions at local, national, and international levels. At every stage of the project, the host organization from Portugal is involved in its implementation. Within the partnership consortium, there are four experienced organizations and three so-called “newcomer” or “less experienced” organizations. In our view, this is the best combination for joint development, inspiration, and action in support of youth workers.