Can a letter of recommendation from my university team or any higher authorities be accepted for a Master's?

Yes, a letter of recommendation from your university team or higher authorities can be accepted if they know you well and can speak specifically about your academic or professional abilities.

For German master's applications, recommendations are strongest when written by professors, thesis supervisors, or project/internship supervisors who can provide detailed insights into your skills and achievements. If higher authorities or university team members have directly overseen your work and can give a specific, detailed letter, it will be valuable. Make sure the letter follows the university’s guidelines and is not generic.