Required Fields Validator

Overview

The Required Fields Validator ensures that specified fields on the cart are not empty. The fields to validate and an optional order type filter are configured through connector properties. It supports both built-in properties on the order object (e.g., CustomerReference) and custom properties.

Identifier

Property	Value
Connector ID	`RequiredFieldsValidator`
Validation Type	General

Behavior

Reads the list of required fields and optional order type filter from the connector configuration
If an OrderType is specified and the cart's order type doesn't match, validation is skipped
For each configured Field:
- First checks if it matches a built-in property on the IOrder interface
- If not found as a built-in property, checks custom properties on the cart
- If the value is empty or missing, adds a validation error
Returns one error per missing field

Error messages

Condition	Translation Key
Required field is empty	`RequiredField` + field name

Configuration

Property	Type	Required	Description
`OrderType`	string	No	When set, only validates carts with this order type
`Field`	string	Yes (repeatable)	Name of a field to validate. Add multiple `Field` entries for multiple required fields.

Example

The following configuration requires CustomerReference to be set on all carts with order type Online:

{
  "name": "RequiredFieldsValidator",
  "implementations": ["IValidator"],
  "properties": [
    { "key": "OrderType", "value": "Online" },
    { "key": "Field", "value": "CustomerReference" }
  ],
  "disableStandardErrorPolicy": false
}

You can register multiple instances of this validator with different connector IDs to validate different fields for different order types.