> ## Documentation Index > Fetch the complete documentation index at: https://product-discovery.developer.voyado.com/llms.txt > Use this file to discover all available pages before exploring further. # Base configuration > Base configuration of the Voyado Elevate Email recommendations add-on. Email recommendations requires a base configuration before templates and campaigns can be created. The Configuration tab is only available to users with Email app Admin access. The default settings are used on all markets. Custom market settings can be configured for the product URL template and the exclude products filter. Email recommendations configuration tab ## Access All intended users of the Email app must have access set in the Admin app to both the Email app and the markets that the users will use Email recommendations with. It is recommended that Email app users are familiar with HTML and CSS syntax to create [product templates](/elevate/docs/addons/email-recommendations/product-templates/product-templates). [Mustache templates](https://mustache.github.io/) are used to enable inclusion of attributes from Voyado Elevate. ## Default settings ### Market Sets the default market used for Email recommendations. ### Locale Sets the default locale used for Email recommendations. ### Image dimensions The recommendation image dimensions can be set to either `Use original` size or `Scale`, where a fixed width and height will be the default. ## Product URL settings A [product URL template](#product-url-template) is required, as is a [timestamp](#timestamp). A [customer key](#customer-key) can also be added as a variable to a product URL. The format of the variables is dependent on the template formatting of email service providers. The campaign ID from an email service provider can also be used. ### Product URL template The product URL template should describe the complete URL to the products in the mail recommendations and uses [Mustache](https://mustache.github.io/) . The product data contains a relative path to the products, meaning that the base URL — the domain of the retailer's site — must be provided to form complete product URLs. Typically the value will look like this: ```handlebars icon="code" theme={null} https://www.example.com{{product.url}} ``` Note that the base URL does not end with a forward slash, `/`, before the URL variable, as all relative paths should start with a forward slash. ### Timestamp The timestamp is a required URL parameter. It is used to ensure that new images will be generated when consecutive emails with the same template ID have been sent to an end customer. The timestamp is based on [UNIX epoch time](https://en.wikipedia.org/wiki/Unix_time) . ### Customer key The customer key is used as a URL parameter to enable personalized recommendations. If omitted, or if no customer key is found, top selling products will be returned. The customer key must match the customer keys used in [Visitor identification](/elevate/docs/integration/site-integration/session-management#visitor-identification) on the site. To be compliant with GDPR, you need to get the user's consent to using personal recommendations. ### Use ESP campaign ID An ESP campaign ID consists of a property name and a property placeholder based on the requirements from an email service provider. A retailer must verify with their Voyado contact that they can use an ESP campaign ID before adding a property name and property placeholder in the Email Recommendation settings. The ESP campaign ID must change dynamically for each sent mail in a campaign. A campaign must be published with a timestamp before the ESP campaign ID can be used with it. ## UTM tags configuration Parameters for additional UTM tags can be configured to automatically be included in URLs. ## Product exclusions A global product exclusion can be set to always leave out a specified set of products in the recommendations. This feature is useful when certain products are not in season — for example, winter clothing in the summer — or are otherwise deemed not desired for recommendations, such as products below a certain price range, gift cards, or spare parts. The exclusion filtering is based on the existing product attributes in a retailer's Elevate cluster and can have multiple rule sets, each with several exclusion layers of products. The global product exclusion will override any campaign product inclusions. Email recommendations excluded products ## Email campaign template A template for the whole email. It allows you to set up CSS styles, iterate over blocks and product positions, and make conditions based on the block types. The template in the default configuration is optional and can be overwritten in the market configuration and in the campaign, as well as reverted to when needed. For more information, see [Email template preview and editor](/elevate/docs/addons/email-recommendations/email-campaigns/email-campaigns#email-template-preview-and-editor) and [Email campaign template model](/elevate/docs/addons/email-recommendations/email-campaigns/template-model). Email recommendations base configuration email campaign template ## Update configuration The configuration can be updated at any time. The new configuration will be applied within 5–10 minutes. Be aware that changes will affect active campaigns. Already opened emails will not change the product set, but product URLs will lead to a different location if the [product URL template](#product-url-template) is changed.