Describe the process of creating ads with countdown timers using ad customizers in Bing Ads.

Creating ads with countdown timers using ad customizers in Bing Ads (Microsoft Ads) involves a series of steps to dynamically display countdowns to promotions or deadlines. This process helps create a sense of urgency and encourages users to take action before the offer expires. Here's a detailed guide on how to set up countdown timers in your ads:

### **1. Prepare Your Countdown Timer Data**

1. **Define Countdown Parameters:**
   - Decide the specifics of your countdown timer, such as the start and end dates of your promotion or event.

2. **Determine Your Custom Parameters:**
   - Identify the parameters you will need for your countdown, such as `start date`, `end date`, and `display text`.

### **2. Create a Business Data Feed (if applicable)**

1. **Upload Business Data Feed:**
   - If your countdown timer data is complex or if you have multiple countdowns, you may need to create and upload a business data feed.
   - Go to the **"Tools"** section in Microsoft Ads and select **"Business data."**
   - Create a new feed or upload a file with your countdown details.

2. **Format Your Feed:**
   - Format your feed with columns for countdown attributes such as `Event Name`, `Start Date`, `End Date`, and `Display Text`.

### **3. Set Up Countdown Customizer**

1. **Navigate to Ad Customizers:**
   - Go to the **"Ads & extensions"** tab in Microsoft Ads.

2. **Create or Edit Ad Customizers:**
   - Select **"Ad customizers"** from the navigation menu.
   - Click on **"Create ad customizer"** or select an existing customizer to edit.

3. **Define Countdown Customizer:**
   - Create a new customizer by defining the countdown parameters. For example, specify the start date and end date for your countdown.

### **4. Create Countdown Timer in Your Ad Copy**

1. **Access Ad Creation:**
   - Go to the **"Ads & extensions"** tab and select **"Create ad"** or **"Edit"** an existing ad.

2. **Insert Countdown Timer Parameter:**
   - In the ad copy, insert the countdown timer customizer parameter. Use the following syntax in your ad text:
     ```
     "Hurry! Only {=CountdownTimer.EndDate} days left to save 20%! {=CountdownTimer.DisplayText}."
     ```
   - Replace `{=CountdownTimer.EndDate}` and `{=CountdownTimer.DisplayText}` with the actual parameters you defined.

3. **Customize Display Text:**
   - Adjust the display text to fit the context of your ad. For example, you might use text like "Limited Time Offer" or "Ends Soon" to convey urgency.

### **5. Review and Save**

1. **Preview Ads:**
   - Preview your ads to ensure that the countdown timer is displayed correctly and that the ad copy reads as intended.

2. **Save Changes:**
   - Save your ad changes and submit them for review. Ads with countdown timers may go through an approval process, which typically takes a few hours.

### **6. Monitor Performance**

1. **Track Ad Metrics:**
   - After your ads go live, monitor performance metrics such as click-through rates (CTR) and conversion rates to assess the effectiveness of your countdown timers.

2. **Adjust Timers as Needed:**
   - Based on performance data and any changes in your promotion schedule, update the countdown timers as necessary to keep the information current.

### **Summary**

Creating ads with countdown timers in Bing Ads involves setting up ad customizers with countdown parameters, integrating those parameters into your ad copy, and monitoring performance. By dynamically inserting countdowns into your ads, you can create a sense of urgency and drive users to take action before the offer expires. This process helps to increase engagement and conversion rates by making your promotions more compelling and time-sensitive.