Metadata Skill

This skill guides you through working with site metadata XML for Salesforce B2C Commerce, including custom attributes, custom objects, and site preferences.

Overview

Metadata defines the structure of your B2C Commerce data:

Metadata Type	Purpose
System Object Extensions	Add custom attributes to Products, Orders, Customers, etc.
Custom Objects	Define entirely new data types
Site Preferences	Site-specific configuration values

Site Archive Structure

Metadata is organized in site archives:

/site-archive
    /meta
        system-objecttype-extensions.xml    # Custom attributes on system objects
        custom-objecttype-definitions.xml   # Custom object definitions
    /sites
        /MySite
            preferences.xml                 # Site preferences

System Object Extensions

Add custom attributes to existing system objects.

Basic Structure

<?xml version="1.0" encoding="UTF-8"?>
<metadata xmlns="http://www.demandware.com/xml/impex/metadata/2006-10-31">
    <type-extension type-id="Product">
        <custom-attribute-definitions>
            <attribute-definition attribute-id="myCustomAttribute">
                <display-name xml:lang="x-default">My Custom Attribute</display-name>
                <type>string</type>
                <mandatory-flag>false</mandatory-flag>
                <externally-managed-flag>false</externally-managed-flag>
            </attribute-definition>
        </custom-attribute-definitions>
        <group-definitions>
            <attribute-group group-id="MyCustomGroup">
                <display-name xml:lang="x-default">My Custom Group</display-name>
                <attribute attribute-id="myCustomAttribute"/>
            </attribute-group>
        </group-definitions>
    </type-extension>
</metadata>

Common System Objects

Object Type	Use Case
`Product`	Product attributes
`Order`	Order metadata
`Profile`	Customer profile data
`Basket`	Cart data
`SitePreferences`	Site configuration
`Category`	Category attributes
`Content`	Content asset attributes

Attribute Types

Type	Description	Example
`string`	Text (max 4000 chars)	SKU, descriptions
`text`	Long text (unlimited)	Rich content
`int`	Integer	Quantity, rank
`double`	Decimal	Percentage, weight
`boolean`	true/false	Flags
`date`	Date only	Birth date
`datetime`	Date and time	Timestamps
`email`	Email address	Contact email
`password`	Encrypted	API keys
`html`	HTML content	Rich text
`enum-of-string`	Single select	Status
`enum-of-int`	Numeric enum	Priority level
`set-of-string`	Multi-select	Tags
`set-of-int`	Numeric multi-select	Categories
`image`	Image reference	Thumbnails

Enum Value Definitions

Enum types (enum-of-string, enum-of-int, set-of-string, set-of-int) require value-definitions with value/display pairs:

<attribute-definition attribute-id="warrantyType">
    <display-name xml:lang="x-default">Warranty Type</display-name>
    <type>enum-of-string</type>
    <mandatory-flag>false</mandatory-flag>
    <value-definitions>
        <value-definition>
            <value>none</value>
            <display xml:lang="x-default">No Warranty</display>
        </value-definition>
        <value-definition>
            <value>limited</value>
            <display xml:lang="x-default">Limited Warranty</display>
        </value-definition>
        <value-definition>
            <value>full</value>
            <display xml:lang="x-default">Full Warranty</display>
        </value-definition>
    </value-definitions>
</attribute-definition>

Element	Purpose
`<value>`	The stored/API value (use lowercase, no spaces)
`<display>`	Human-readable label shown in Business Manager

Product Custom Attribute Example

<?xml version="1.0" encoding="UTF-8"?>
<metadata xmlns="http://www.demandware.com/xml/impex/metadata/2006-10-31">
    <type-extension type-id="Product">
        <custom-attribute-definitions>
            <!-- Simple string attribute -->
            <attribute-definition attribute-id="vendorSKU">
                <display-name xml:lang="x-default">Vendor SKU</display-name>
                <type>string</type>
                <mandatory-flag>false</mandatory-flag>
                <externally-managed-flag>true</externally-managed-flag>
            </attribute-definition>

            <!-- Enum (dropdown) attribute -->
            <attribute-definition attribute-id="productCondition">
                <display-name xml:lang="x-default">Product Condition</display-name>
                <type>enum-of-string</type>
                <mandatory-flag>false</mandatory-flag>
                <value-definitions>
                    <value-definition>
                        <value>new</value>
                        <display xml:lang="x-default">New</display>
                    </value-definition>
                    <value-definition>
                        <value>refurbished</value>
                        <display xml:lang="x-default">Refurbished</display>
                    </value-definition>
                    <value-definition>
                        <value>used</value>
                        <display xml:lang="x-default">Used</display>
                    </value-definition>
                </value-definitions>
            </attribute-definition>

            <!-- Boolean attribute -->
            <attribute-definition attribute-id="isHazardous">
                <display-name xml:lang="x-default">Hazardous Material</display-name>
                <type>boolean</type>
                <mandatory-flag>false</mandatory-flag>
                <default-value>false</default-value>
            </attribute-definition>

            <!-- Multi-select attribute -->
            <attribute-definition attribute-id="productFeatures">
                <display-name xml:lang="x-default">Product Features</display-name>
                <type>set-of-string</type>
                <mandatory-flag>false</mandatory-flag>
                <value-definitions>
                    <value-definition>
                        <value>waterproof</value>
                        <display xml:lang="x-default">Waterproof</display>
                    </value-definition>
                    <value-definition>
                        <value>recyclable</value>
                        <display xml:lang="x-default">Recyclable</display>
                    </value-definition>
                </value-definitions>
            </attribute-definition>
        </custom-attribute-definitions>

        <group-definitions>
            <attribute-group group-id="CustomProductInfo">
                <display-name xml:lang="x-default">Custom Product Information</display-name>
                <attribute attribute-id="vendorSKU"/>
                <attribute attribute-id="productCondition"/>
                <attribute attribute-id="isHazardous"/>
                <attribute attribute-id="productFeatures"/>
            </attribute-group>
        </group-definitions>
    </type-extension>
</metadata>

Custom Object Definitions

Create entirely new data types.

<?xml version="1.0" encoding="UTF-8"?>
<metadata xmlns="http://www.demandware.com/xml/impex/metadata/2006-10-31">
    <custom-type type-id="StoreLocations">
        <display-name xml:lang="x-default">Store Locations</display-name>
        <description xml:lang="x-default">Physical store information</description>
        <staging-mode>source-to-target</staging-mode>
        <storage-scope>site</storage-scope>
        <key-definition attribute-id="storeId">
            <display-name xml:lang="x-default">Store ID</display-name>
            <type>string</type>
            <min-length>1</min-length>
        </key-definition>
        <attribute-definitions>
            <attribute-definition attribute-id="storeName">
                <display-name xml:lang="x-default">Store Name</display-name>
                <type>string</type>
                <mandatory-flag>true</mandatory-flag>
            </attribute-definition>
            <attribute-definition attribute-id="latitude">
                <display-name xml:lang="x-default">Latitude</display-name>
                <type>double</type>
            </attribute-definition>
            <attribute-definition attribute-id="longitude">
                <display-name xml:lang="x-default">Longitude</display-name>
                <type>double</type>
            </attribute-definition>
            <attribute-definition attribute-id="phone">
                <display-name xml:lang="x-default">Phone</display-name>
                <type>string</type>
            </attribute-definition>
            <attribute-definition attribute-id="isActive">
                <display-name xml:lang="x-default">Active</display-name>
                <type>boolean</type>
                <default-value>true</default-value>
            </attribute-definition>
        </attribute-definitions>
        <group-definitions>
            <attribute-group group-id="StoreInfo">
                <display-name xml:lang="x-default">Store Information</display-name>
                <attribute attribute-id="storeId" system="true"/>
                <attribute attribute-id="storeName"/>
                <attribute attribute-id="latitude"/>
                <attribute attribute-id="longitude"/>
                <attribute attribute-id="phone"/>
                <attribute attribute-id="isActive"/>
            </attribute-group>
        </group-definitions>
    </custom-type>
</metadata>

Site Preferences

Site-specific configuration via custom attributes on SitePreferences.

Metadata (system-objecttype-extensions.xml)

<?xml version="1.0" encoding="UTF-8"?>
<metadata xmlns="http://www.demandware.com/xml/impex/metadata/2006-10-31">
    <type-extension type-id="SitePreferences">
        <custom-attribute-definitions>
            <attribute-definition attribute-id="enableFeatureX">
                <display-name xml:lang="x-default">Enable Feature X</display-name>
                <type>boolean</type>
                <default-value>false</default-value>
            </attribute-definition>
            <attribute-definition attribute-id="apiEndpoint">
                <display-name xml:lang="x-default">API Endpoint</display-name>
                <type>string</type>
            </attribute-definition>
            <attribute-definition attribute-id="maxItemsPerPage">
                <display-name xml:lang="x-default">Max Items Per Page</display-name>
                <type>int</type>
                <default-value>20</default-value>
            </attribute-definition>
        </custom-attribute-definitions>
        <group-definitions>
            <attribute-group group-id="CustomSettings">
                <display-name xml:lang="x-default">Custom Settings</display-name>
                <attribute attribute-id="enableFeatureX"/>
                <attribute attribute-id="apiEndpoint"/>
                <attribute attribute-id="maxItemsPerPage"/>
            </attribute-group>
        </group-definitions>
    </type-extension>
</metadata>

Values (sites/MySite/preferences.xml)

Preferences can be set per instance type (development, staging, production) or for all instances:

<?xml version="1.0" encoding="UTF-8"?>
<preferences xmlns="http://www.demandware.com/xml/impex/preferences/2007-03-31">
    <custom-preferences>
        <all-instances>
            <!-- Values that apply to all instance types -->
            <preference preference-id="maxItemsPerPage">25</preference>
        </all-instances>
        <development>
            <!-- Development-specific values -->
            <preference preference-id="enableFeatureX">true</preference>
            <preference preference-id="apiEndpoint">https://dev-api.example.com/v1</preference>
        </development>
        <staging>
            <preference preference-id="enableFeatureX">true</preference>
            <preference preference-id="apiEndpoint">https://staging-api.example.com/v1</preference>
        </staging>
        <production>
            <preference preference-id="enableFeatureX">false</preference>
            <preference preference-id="apiEndpoint">https://api.example.com/v1</preference>
        </production>
    </custom-preferences>
</preferences>

Access in Code

var Site = require('dw/system/Site');

var enableFeatureX = Site.current.getCustomPreferenceValue('enableFeatureX');
var apiEndpoint = Site.current.getCustomPreferenceValue('apiEndpoint');
var maxItems = Site.current.getCustomPreferenceValue('maxItemsPerPage');

Attribute Definition Options

<attribute-definition attribute-id="myAttribute">
    <display-name xml:lang="x-default">Display Name</display-name>
    <description xml:lang="x-default">Description for BM tooltip</description>
    <type>string</type>
    <localizable-flag>false</localizable-flag>
    <mandatory-flag>false</mandatory-flag>
    <externally-managed-flag>false</externally-managed-flag>
    <visible-flag>true</visible-flag>
    <site-specific-flag>false</site-specific-flag>
    <order-required-flag>false</order-required-flag>
    <searchable-flag>false</searchable-flag>
    <min-length>0</min-length>
    <max-length>256</max-length>
    <default-value>default</default-value>
    <select-mode>none</select-mode>
    <unit>kg</unit>
</attribute-definition>

Flag	Purpose
`localizable-flag`	Can have different values per locale
`mandatory-flag`	Required in BM
`externally-managed-flag`	Read-only in BM
`visible-flag`	Shown in BM
`site-specific-flag`	Different value per site
`order-required-flag`	Required for order export
`searchable-flag`	Indexed for search

Best Practices

Use attribute groups to organize in Business Manager
Prefix custom attributes with organization name (e.g., acme_myAttribute)
Set externally-managed for data imported from external systems
Use enums over strings for controlled vocabularies
Document with descriptions - they appear as tooltips

Detailed Reference

System Objects Reference - All system object types
XML Examples - Complete import/export examples

b2c-metadata

Metadata Skill