Seller Fulfilled Prime

I would assume Germany is the same as below.

Invitation to Seller Fulfilled Prime

To be considered for Seller Fulfilled Prime, you need to demonstrate and maintain an excellent performance as an Amazon seller.

• Your warehouse (default shipping address) must be located in mainland UK.
• You must have an account with a professional selling plan, and the account must be active and in good standing.
• You must meet one of the following criteria:
  • You must be able to ship at least 10-20 packages a day (50-100 a week) with Amazon Shipping.
  • You must have a Royal Mail Business Account with access to Royal Mail’s Tracked 24 and Tracked 48 services.
  • You must be able to ship at least two parcels a day with DPD.