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Compatible operating systems
  • Windows
  • Mac OS
  • Linux

Note: Mobile operating systems are not compatible due to its limitations when reading digital certificates and running Java applets.

Compatible browsers
  • Mozilla Firefox – all versions
  • Microsoft Edge – all versions
  • Google Chrome – all versions

Java (verifique que possui apenas uma versão instalada)

Ports 80 and 443 to http and https

These options are set as standard on network options. In case of doubts, please contact your network manager or supplier.

For the correct use of ComprasPT platform, users must activate the TLS functionality in their browser

Click the links below to confirm your access to the list of Revoked Certificates (CRL) of each Issuing Authority. You just need to confirm the access to the links. It is not necessary to download the files.

Multicert  |  Digitalsign  |  Citizen Card







Validate the software version: open the Citizen Card application, access "Help" menu and click on "About".

We recommend using the most up-to-date version of the Citizen Card software