The changed regulation affects beverages that are classified before to the CN Code classification under the CN code 2206 and from 26 June 2019 to the CN code 2208. After the change the beverages are taxed as an ethyl alcohol. More information on European Union Regulation, guidelines of Finnish Customs (only in Finnish) and guidelines of Finnish Tax Administration (only in Finnish).
Because of the change the supplier has to immediately do a product chance request with an new product's offer form (using a search number M2019) for those products, which are affected by the changed regulation. Alko gives a possibility to the supplier to change the prices by the total of the changed factors at maximum in the offer.
More information: Product Manager Timo Vallo (firstname.lastname@example.org)
UPDATED on 25 June 2019: Added a link to the guidelines of Finnish Customs.