Notification under section 25(1) PMG must be made in writing. It must state the type of service and its technical and operational characteristics. For the transaction, the service description in the data room, the agreement and the notification should describe the same operation. A general term such as logistics will usually not answer the statutory question.
For an initial start, the relevant point is before the service begins. For a change, the focus is the concrete alteration to the operation. This may concern technical fulfilment, operational organisation or the service range. Where the business is discontinued, notification must also be reviewed before the operation ends.
The notification duty belongs to the postal service provider. In an asset acquisition, it is therefore particularly important to determine whether the buyer starts its own service or whether an existing operating structure is intended to continue. In a share acquisition, the company remains the legal operator, but a changed operation may still trigger notification. Sections 25 and 26 PMG do not create a general exemption based on the transaction form.