I would like to publish a form publicly using a QR code but keep the results secure in SharePoint list, is this possible?
This is possible in an onPrem environment using Nintex live. You can create a form and make it public available,and allow anonymous submit. Then you get a URL you can use to generate the QR
Thanks Fredrik, is this not possible from a Office 365 hosted SharePoint site?
You can request the feature here:
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