COVID Certificates: common problems and solutions

You can generate a COVID certificate (QR code) in the CoronaCheck app or on If you are having problems, see if you can find the solution below.

Please note: This page may longer be up to date but will be updated soon. In the meantime, for the most recent information, go to the page on Preventing respiratory infections.

Problems with proof of vaccination

If you are having issues generating proof of vaccination, for instance because you only received one dose of vaccination due to previously having been infected with coronavirus, see the information on proof of vaccination.

Problems with digital tools

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More information about COVID certificates

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