Knowella

Conditional logic & required fields

Make forms adapt to the answer — show the right fields and enforce the ones that matter.

3 min read Real product screens
Good forms adapt to the person filling them in. Conditional logic shows only the fields that apply to an answer, and required fields make sure the ones that matter never get skipped — together they keep forms short and data complete.
app.knowella.com
Control each field
1

Control each field

The screen shows a component selected on the Build App canvas with its controls exposed. Two do the heavy lifting: the Required toggle, which blocks submission until the field is answered, and Add Logic, which ties this field's visibility to an earlier answer. Configuration holds the finer rules — validation, default values, formatting. Together they turn a static form into one that adapts to each response and enforces the answers that matter.

  • RequiredBlock submission until the field is filled in.
  • Add LogicShow/hide or branch a field based on a previous answer.
  • ConfigurationSet validation rules, default values, and formatting.
2

Show the right fields at the right time

With Add Logic a field appears only when a previous answer calls for it — ask about a corrective action only when a check fails, for instance. People get a short, relevant form instead of wading through fields that do not apply to them.

3

Enforce what cannot be missing

Marking a field required blocks submission until it is answered, so critical data — a signature, a severity rating, a photo — is never left blank. It is the simplest guardrail against incomplete records.

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