Module Front-end Validation
Your own validation rules for each field, including conditional ones
Standard PrestaShop validation lets through an incorrect phone number or a wrong postcode format, and correcting orders costs customer service time. The module lets you define your own rules for each field, including rules that depend on other fields, for example a postcode format matched to the selected country.
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Module benefits
The correct data format
Rules enforce the right format instead of catching errors after the order is placed.
Fewer shipping mistakes
A complete, correctly entered address means fewer parcels returned to sender.
Conditional rules
The format of a field depends on the value of another field, reflecting real rules, for example different postcodes in different countries.
Clear messages
Customers know what to correct, because the message says plainly what format you expect.
Less work for customer service
The team doesn't correct order data by hand or call customers for missing information.
Prevention costs less than correction
An error caught in the form is free, the same error in an order costs time and a shipment.
The default error message often appears after the form is submitted and doesn’t say plainly what’s wrong. The customer tries again, and on the third attempt closes the tab.
A hint in the field and a precise message guide them straight away. Conditional validation adds business logic, so the form behaves differently for a customer from Poland and for a customer from Germany.
Practical applications
One format for Poland, another for Germany, without correcting addresses by hand.
Enforcing the number of digits and a format the courier company will accept.
A field that is mandatory and checked only when the customer has chosen an invoice.
Technical specification
Defining rules
- Field ruleA regular expression describing the allowed value format.
- Conditional ruleDependence on the value of another field, for example the selected country.
- Error messageThe text shown to the customer when a value doesn't meet the rule.
- Field hintAn example format visible before the customer starts typing.
Where validation works
- In registration, address and contact forms.
- In the checkout process, before moving on to the next step.
- In the browser, so the customer sees the message straight away.
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