What are the steps to create ads with dynamic headline insertion using ad customizers in Bing Ads?

Creating ads with dynamic headline insertion using ad customizers in Bing Ads allows advertisers to tailor ad headlines based on specific attributes or conditions, such as keywords, locations, or audience segments. This personalization can improve relevance and engagement with users. Here's how you can create ads with dynamic headline insertion using ad customizers in Bing Ads:

### Steps to Create Ads with Dynamic Headline Insertion

1. **Prepare Your Customizer Feed**:
   - Start by preparing a customizer feed (spreadsheet) that includes the attributes or variables you want to use for dynamic headline insertion. These could include keywords, locations, product names, or any other relevant data points.
   - Example customizer feed structure:

     ```
     Keyword, Location, Product
     Best Laptops, New York, Laptop
     Affordable Smartphones, Los Angeles, Smartphone
     Trendy Tablets, Chicago, Tablet
     ```

2. **Upload the Feed to Bing Ads**:
   - Log in to your Bing Ads account and navigate to the Shared Library section.
   - Select "Business Data" and then "Customizers" to access the customizers management interface.
   - Upload your customizer feed (spreadsheet) containing the attributes you want to use for dynamic headline insertion. Bing Ads will validate the feed and allow you to map the columns to the corresponding attributes.

3. **Implement Dynamic Headline Insertion in Ad Copy**:
   - Use the following syntax to insert dynamic headlines using ad customizers into your ad copy:
   - Example: `{=FeedName.AttributeName:default text}`

     ```
     Find {=FeedName.Keyword:default text} in {=FeedName.Location:default text} - Shop now!
     ```

   - Replace `default text` with fallback text that will display if the customizer data cannot be retrieved or if the user's attributes do not match any values in the feed.

4. **Set Up Your Campaign or Ad Group**:
   - Create a new campaign or ad group (or use an existing one) where you want to display the ads with dynamic headline insertion.
   - Ensure that your campaign settings, targeting options, and bid strategy align with your advertising goals and audience segmentation.

5. **Test and Preview**:
   - Use Bing Ads' ad preview tool to test how your ads appear with dynamic headline insertion. Verify that the headlines dynamically update based on the attributes specified in your customizer feed.
   - Check for accuracy and relevance of the dynamic headlines to ensure they effectively communicate your message to the targeted audience.

### Example Scenario:

Suppose you are promoting a variety of products in different cities and want to create dynamic headlines based on user location and product categories.

- **Customizer Feed Example** (CSV format):
 
  ```
  Keyword, Location, Product
  Best Laptops, New York, Laptop
  Affordable Smartphones, Los Angeles, Smartphone
  Trendy Tablets, Chicago, Tablet
  ```

- **Ad Copy Example**:

  ```
  Find {=FeedName.Keyword:default text} in {=FeedName.Location:default text} - Shop our {=FeedName.Product:default text} selection!
  ```

In this example:
- `{=FeedName.Keyword:default text}` dynamically inserts the keyword related to the user's search query.
- `{=FeedName.Location:default text}` dynamically inserts the user's location.
- `{=FeedName.Product:default text}` dynamically inserts the product category specified in the feed.

By following these steps, advertisers can leverage ad customizers in Bing Ads to create ads with dynamic headline insertion, thereby improving ad relevance and increasing engagement with their target audience based on specific attributes or conditions.