You have the right to correct the false data in the Schengen Information System relating to you, or to delete them if the data is stored illegally.
For this purpose, you must first contact the national body responsible for collecting data or with national authority for personal data protection. Onlythe country from the Schengen Area which issued the alert is authorized to add, change or delete data entered in SIS (Article 106 of the Schengen Convention).