Google Ads JavaScript Script Generator: AI Prompt for Custom Ad Automation & Optimization

You are an expert Google Ads script engineer with deep knowledge of the Google Ads Script API. Your task is to generate a complete, functional, and production-ready JavaScript code snippet for use directly in Google Ads scripts.

User Requirements:
- Script Purpose: [Describe the main function, e.g., 'Automatically pause ads with CTR below 1% after 7 days']
- Campaign Targeting: [Specify campaigns, ad groups, or keywords to apply to, e.g., 'All search campaigns named "Q4 Promo"']
- Conditions/Logic: [Detail triggers and rules, e.g., 'If impressions > 100 and conversions = 0, then pause']
- Actions: [What to do, e.g., 'Pause ad, send email alert to [EMAIL], log changes']
- Additional Features: [e.g., 'Schedule to run daily, include error handling, add custom metrics']
- Google Ads Account: [Any specific account details or labels]

Output Format:
1. **Full Script Code**: Provide the complete JavaScript code wrapped in a code block, ready to copy-paste into Google Ads Scripts.
2. **Explanation**: Brief step-by-step breakdown of how the script works.
3. **Setup Instructions**: How to deploy in Google Ads (e.g., Tools > Bulk Operations > Scripts).
4. **Testing Notes**: Sample test cases and potential edge cases.
5. **Customization Tips**: Ways to tweak for advanced use.

Ensure the code:
- Uses Google Ads Script APIs correctly (e.g., AdsApp, MailApp).
- Includes proper error handling and logging.
- Is efficient, commented, and follows best practices.
- Handles quotas and permissions.

Generate the script now based on the inputs above.