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HTML Integration: Item Page (Legacy)

NOTE This section refers to a legacy feature which is only available to existing customers. New and existing customers looking to add personalization should refer to Item Page (JSON)

An item page is typically any page that shows detailed product information for a single product.

This is a required page type. Even if no placements appear on this page, the integration logic must be present.

How To Make This Code Work For You

Function Requirement
R3_COMMON.setApiKey('MY_API_KEY'); Replace MY_API_KEY with your site’s API key, a unique identifier for your account.

Set RRSERVER_URL to one of these values.

For initial development:


For production:


R3_COMMON.setSessionId('USER_SESSION_ID'); Replace USER_SESSION_ID with the session ID for the current user and session. The session ID is a crucial variable that allows Algonomy to track shopper behavior when they visit your site so recommendations can be generated. This parameter should remain the same from start to finish for a user’s shopping session.

Replace USER_ID with the user ID, a unique string to identify each user. All user behavior will be stored using this key. It is case-sensitive and should be the same UserId sent to {rr} in other applications.User IDs are often connected to email addresses, and can be directly linked to the login credentials a consumer uses to log into and buy products from the e-commerce site. To avoid sending personally identifiable information to Algonomy, you can use a hash of your site’s user ID (if, for example, your site uses email addresses as user IDs, then you should not send that information directly to Algonomy).

Note: if the USER_ID is unknown, leave it blank.

R3_ITEM.setId('ITEM_ID'); Replace ITEM_ID with the item ID, a unique identifier for the item. Also known as a product ID.
R3_ITEM.setName('ITEM_NAME'); Replace ITEM_NAME with the item name, a user-friendly name of the item.

Replace CATEGORY_ID with the category ID. This is the current category ID related to your product based on the context of how your shopper navigated to it. For example, if a shopper navigated to "Electronics - Computers - Laptops", the category ID would be Laptops. If the user landed on the item page without a breadcrumb trail or navigation process, you can fall back on a Primary Category or Default Category. Algonomy uses the addCategoryHintId to derive category context when responding with data.

Note: This field can be alphanumeric. The example below is numeric. 


No changes are required.

This code enables the client to send the domain for click-through URL through the p13n_generated.js call if relative URLs are supplied in the feed. For example, if the domain calling our code is or, we can automatically redirect to the correct domain.

Sample Integration Code

Primary Code Block

<!-- Place this code inside the <body> element as close to the top as possible -->
<script src="//"></script>
<script charset="utf-8" type="text/javascript">
  var R3_COMMON = new r3_common();
  R3_COMMON.setUserId('1');  // if no user ID is available, please leave this blank
  // here's an example requesting recommendations for 3 page areas
 // We highly recommend you provide the Category Hint ID. See above for more information.
  var R3_ITEM = new r3_item();
  R3_ITEM.setName('HP 2000-2b59WM Laptop PC with Intel Pentium B960 Processor and Windows 8');

Placement-marker Code Blocks

<script charset="utf-8" type="text/javascript">
<!-- Page contents -->
<script charset="utf-8" type="text/javascript">
<!-- Page contents -->
<script charset="utf-8" type="text/javascript">

Flush Code Block

<script charset="utf-8" type="text/javascript"> rr_flush_onload();</script>


  • The values in addPlacementType() should match the values in each r3_placement() call.
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