Set an ad tag via a key-value pair

Once you’ve deployed your Dynamic Strategy Rules placements, how can you ensure each viewer sees the most relevant video ad?

Dynamic Strategy Rules let you use key-value pairs to set up the player with a dynamic ad tag or change the ad tag during a user session. By leveraging page context, first-party data, or a customer-managed Prebid auction, you can dynamically generate the most relevant ad tag when the page renders.

Prerequisites

Set the ad tag

Ad tag used at player setup

Follow these steps to dynamically insert an ad tag:

1. On a site page, set a key-value pair in the jwDataStore with the ad tag.

   🚧

   This client-side code must occur before the placement embed script loads the player.

   JavaScript

   const jwDataStore = window.jwDataStore || { custom: {} };
   jwDataStore.custom.abcd1234 = { myPlacementLevelAd: "https://my.ad.com/placement-level-engaging-ad.xml" };
   window.jwDataStore = jwDataStore;
   

   Key-value pair	Description
   <key>	Unique name for the ad tag Example:myPlacementLevelAd
   <value>	URL of the ad tag Example:https://my.ad.com/placement-level-engaging-ad.xml

   
   

2. In your JWP dashboard, create an advertising experience for manual ad breaks or a VMAP:

   1. Enter a default Ad Tag URL. This ad tag will be used when an opportunity occurs on a page that does not have the specified key defined.

      📘

      This ad tag will be used if the key set in step 2iii is missing from the DataStore.

      Based on the example in step 1, if myPlacementLevelAd is not in your DataStore, the ad tag in this field will be served.

   2. Click Use Key for Ad Tag if available. A text field appears.
   3. Enter the on-page key defined for the ad tag to display to the viewer. Using the example in step 1, enter myPlacementLevelAd.

Ad tag changes across the user session

Follow these steps to dynamically insert an ad tag:

1. On a site page, set a key-value pair in the jwDataStore with the ad tag.

   🚧

   This client-side code must occur before the trigger event occurs.

   JavaScript

   const jwDataStore = window.jwDataStore || { custom: {} };
   jwDataStore.custom.abcd1234 = { myPlacementLevelAd: "https://my.ad.com/placement-level-engaging-ad.xml" };
   window.jwDataStore = jwDataStore;
   

   Key-value pair	Description
   <key>	Unique name for the ad tag Example:myPlacementLevelAd
   <value>	URL of the ad tag Example:https://my.ad.com/placement-level-engaging-ad.xml

   
   

2. In your JWP dashboard, create a trigger:

   1. For Trigger Type, select Advertising Event.
   2. For Trigger Event, select Before Play.
   3. For Event Trigger Frequency, select Every time.

3. Define the event trigger condition:

   1. From the first dropdown menu, select Player State.
   2. From the next dropdown menu, select Is.
   3. From the last dropdown menu, select Idle.

4. Define the trigger action:

   1. For Action Type, select Advertising.
   2. For Action, select Change ad breaks. The Configure Ad Breaks section appears.
   3. Select Change ad breaks manually or VMAP.
      

      Item	Selection
      Action Type	Advertising
      Action	Change ad breaks
      Configure ad breaks	Idle

      
      
   4. Select Advertising.
   5. Select Change ad breaks.
   6. For the Ad Tag URL, enter a default ad tag URL.

      📘

      This ad tag will be used if the key set in step 4viii is missing from the DataStore.

      Based on the example in step 1, if myPlacementLevelAd is not in your DataStore, the ad tag in this field will be served.

   7. Click Use Key for Ad Tag if available. A text field appears.
   8. Enter the on-page key defined for the ad tag to display to the viewer. Using the example in step 1, enter myPlacementLevelAd.