As proof of the travel purpose and the financing of the business the message accepted in principle an original invitation letter from the business partner, setting out the name of the applicant, the purpose and the period of stay and the cost over declaration contains, according to $66-68 of the Residence (the model see below).
Alternatively, at the official "visits" described obligation according to $ 66-68 of the Residence in the original.
If neither the Declaration of Commitment nor an invitation letter can be submitted with a cost over declaration is in addition to the informal invitation letter from your business partner, a separate financial documentation required. Possible choices are:
If the business is the purchase of durable goods are used (e.g. for automotive, agricultural machinery, equipment), in addition to the proof is also funding the travel of the proof of the necessary cash for the proposed acquisition is required.
If the business is the purchase of durable goods are used (e.g. for automotive, agricultural machinery, equipment), in addition to the proof is also funding the travel tickets of the proof of the necessary cash for the proposed acquisition is required.
For employees is also a written confirmation from your employer on business trip in the original with German translation required.