I have been using QField for a while and recently got a message under fid saying NOT NULL, Unique and I can no longer digitise anything on QField. I read that you can make a change under layer properties but the fid field is not showing in any of my layers in QField to make that change.

I am not that experienced so simple directions on how to fix it would be great.


2 Answers 2


This was an issue in QField 1.7.7 and is fixed in QField 1.7.8 (soon to be released to the playstore at time of writing).



Mary, QField only display configurations made in QGIS. So in QGIS, you need to look at the Attribute Form for your layer(s) and check the Constraints configurations.Attributes Form

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