Admin Hub, lisbon project

Schengen Information System (SIS)

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Websites

What is it?

The Schengen Information System (SIS) is a European database that allows participating countries to share alerts about people and objects for border management, police cooperation and migration enforcement.

Some alerts concern people subject to a decision refusing entry or stay, or a return decision. A relevant SIS alert may affect a residence permit application in Portugal, depending on the type of alert and the circumstances of the case.

Step-by-Step guide

  1. Request access to your SIS data: If you believe an alert exists, you can request access to the data held about you. In Portugal, requests can be addressed to the National SIRENE Bureau.
  1. Request correction or deletion, if justified: You can request correction of inaccurate information or deletion of data that has been unlawfully recorded. The country that issued the alert is responsible for modifying or deleting it.
  1. Seek legal support: SIS cases can be complex. A lawyer or a migrant-support organisation can help you understand the alert and the available options.
  1. Follow up on your residence application: Inform your legal adviser about the alert and seek advice on how it affects your application to AIMA. Do not assume that an application will automatically be refused or that an alert will be removed simply because you are living in Portugal.

Community Tips and Learning

  • Do not ignore official decisions or deadlines connected to immigration proceedings.
  • Keep copies of relevant documents, including any decision that may have led to the alert.
  • Be cautious of scams: avoid anyone promising guaranteed SIS deletion in exchange for money.
  • Know your rights: you may have the right to access, correct or request deletion of your data, and to challenge decisions through the appropriate authorities or courts.

Important: Only the competent authorities can decide whether an alert should be amended or deleted. Outcomes depend on the legal basis and circumstances of each case.

Frequently Asked Questions

Find answers to common questions about the SIS.

It may affect your application, depending on the type of alert, its legal basis and your individual circumstances. Not every SIS alert automatically leads to refusal.

Where we are

Rua Carvalho Araújo 66-B
1900-140 Lisboa
Portugal

How to Get Here

  • Metro: Linha Verde (Green Line) - Alameda Station
  • Bus: 708, 730, 742, 794

Opening hours

Mon, Tue, Thu
10:00–12:30 & 14:00–17:30
Wednesday (Extended)
Until 19:30
Friday
Until 18:30
No appointment needed. Just walk in.

Contact info

+351 964 809 959