HelloForms guides
Form building guides
Practical, step-by-step guides to building better forms: conditional logic, calculations, required fields, page skipping, payments, notifications and accessibility.
Updated August 2026
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Conditional Logic in Forms: The Complete Guide
Conditional logic shows, hides, requires, calculates and skips based on what someone answers. This guide explains every rule type in HelloForms and when to reach for each one.
11 min read
Research guide
Data collection methods
Ten methods compared on cost, speed, sample size and bias — with sampling designs, a sample size calculator, question-design rules and consent-ready templates.
3 guides
- BasicsConditional Logic in Forms: The Complete GuideConditional logic shows, hides, requires, calculates and skips based on what someone answers. This guide explains every rule type in HelloForms and when to reach for each one.11 min read
- TroubleshootingFix Form Logic Warnings: Bulk Fixes, Diffs, ShortcutsThe Conditions panel lints every rule as you edit. This guide covers the warning types, the bulk fix dialog and its change diff, the audit trail, and the Alt+Shift shortcuts that run the whole repair from the keyboard.11 min read
- AdvancedCollect Payment by Bank Transfer or Purchase OrderHow to collect payment by bank transfer or purchase order from a HelloForms form: add the Bank Transfer option, show your account details after submission, and reconcile payments against entries.4 min read