I want to restrict the form submission in Confiform if the required box is unchecked. Means, form can't be submitted if the required box is unchecked.
Consider adding a Validation Rule - https://wiki.vertuna.com/display/CONFIFORMS/ConfiForms+Field+Definition+Rules#ConfiFormsFieldDefinitionRules-Validationrule
with a condition set to trigger when the checkbox field is unchecked (false)
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