Explain how to use ad customizers for geo-targeted campaigns in Bing Ads.

To use ad customizers for geo-targeted campaigns in Bing Ads, you'll need to follow these steps:

1. Create a data feed that contains the geo-targeted information you want to include in your ads. This data feed should include columns for the location (e.g., city, state, region, etc.) and any other relevant information, such as the product name or price.
2. Create a new ad in Bing Ads and include the ad customizer syntax in the appropriate place in the ad text. The syntax for ad customizers is {param:default text}, where "param" is the name of the parameter you want to include in the ad and "default text" is the text that will be displayed if the parameter is not found in the data feed.

For example, if you want to include the location in the headline of your ad, you could use the following syntax:

Headline: {param:Shop in {Location}}: {ProductName}

This ad text would display the product name, followed by the location. If the location for a particular product is not found in the data feed, the default text "Shop in {Location}" would be displayed.

3. Map the columns in your data feed to the appropriate ad customizer parameters. To do this, click on the "Ad customizer" link in the ad editor and select the data feed you created in step 1. Then, map the columns in the data feed to the corresponding ad customizer parameters.
4. Set up geo-targeting for your campaign. To do this, navigate to the "Settings" tab for your campaign and select the "Locations" tab. Then, add the locations you want to target and save your changes.
5. Preview your ad to make sure the ad customizer is working correctly. You can do this by clicking on the "Preview" button in the ad editor and selecting a few different locations from your data feed. The ad should display the correct location for each product.
6. Save and publish your ad.

I hope this helps! Let me know if you have any other questions.