In order to travel to Germany, as part of the Schengen zone there are certain criteria some of us have to fulfill prior. When travelling to Germany you have to consider the countries entry requirements that mostly depend upon your nationality/country of origin and the purpose of your travel.

Will you be required a visa to enter the country? What is the purpose of your stay in Germany as well as the duration? Do you have the sufficient funds (If you are required a visa) to fund your stay in Germany?

So, before planning to go to Germany you will have to make sure that you've got all the right documentation in order to enter and reside in the country for as long as you will need/want to. If you are required a visa, you will have to check what type of a visa is most appropriate for your trip, what kind of documents you will need in order to apply for one and what are the additional formalities one has to go through to start their journey in Germany.

As Germany is part of the Schengen Agreement which allows the citizens of the Schengen area to travel within this whole region with one unified document "Schengen VISA", you will be applying (if requested) for a Schengen Visa to enter Germany. Usually, Schengen visa, once issued, allows you to reside within the Schengen area for a maximum of 90 days, yet this mustn't always be the case; it varies according to different parameters.