You can also learn it on your own but learning Business German from an online institution has some advantages. Let us discuss the advantages:
Organized Course Structure
Language training institutions work on the learning techniques and arrange things in a structured way. So that they can teach in an organized way and quickly. Structured learning offers you a stepwise learning experience that makes your learning advanced. It also helps in memorizing content and practising language basics.
On the other hand, when you learn a language on your own, you can not structure the learning material effectively. You struggle to do it and the process consumes your time.
So! It is better to learn it in an institution.
Learning Material:
Online language learning institutions offer easy access to learning material. You can access it any time anywhere because it is available online. Usually, the material is authenticated and is correct.
When you try to collect the material on your own you need a lot of time and effort to do it.
So! It is better to get enrolled in an online language training institution. 
Certified Trainers
When you get enrolled in an online language learning institution, you get guidance from certified trainers. The certified trainers know how to teach so that students of different age groups can learn easily. Also, trainers know the correct grammar, tones, pronunciations, and articulation required for the language.
When you learn German on your own you have to work hard to find and speak the correct German pronunciations, tones, and knowledge of grammar. Therefore, it is beneficial to learn German at an online institution.
Certificate
The online institutions also provide you the certificate after the completion of the course. This certificate is valuable as it
Is an add on in your resume,
Is proof of your knowledge,
So! If you learn German from an institution, you earn a certificate.
From the Ease of Home
The most important point is learning from home. In this pandemic time, when you learn from an online institution, you learn German at your home. It is safe and convenient.
It also saves the time that you need in travelling to the offline institution.
