You need to be an individual from a country other than Europe.
Both the schedule and the purpose of the trip must be acceptable.
You must have a passport that will expire no later than three months from the time you apply for the visa.
The needed level of medical insurance is at least €30,000.
Bank statements from the previous three months must be provided.
Accommodations must be verified. You can either provide documentation of a hotel reservation or request financial support from local friends or family members.
You must provide proof of the company's legal status and a letter of recommendation from your boss if you travel on business.