If there is a choice field and set it as required in the Custom List, when using qListForm to create an item and created a custom Save action and enable Perform Validation, the form still saved for the item using the custom save even there is no value being specified for the required field.
Title
qListForm – Custom save with validation enabled fails to warn if required fields are emptyDescription
Cause
Product Defect. Defect ID TF00329264 logged.Resolution
WORKAROUND:Create a Form Component Behaviour "Invalid When" condition for the Choice field.
STATUS:
Waiting for fix in a future release of QuickApps for SharePoint