
Google Ads Scripts offer a way to automate repetitive tasks and enhance campaign performance. They enable advertisers to perform functions like bid adjustments, reporting, and budget management with greater efficiency. By integrating these scripts with Performance Max (PMax) campaigns, you can streamline processes while maximizing the benefits of Google’s AI-driven ad system.
Performance Max campaigns focus on optimizing performance across all Google Ads channels, including Search, Display, YouTube, Gmail, and Maps. In this guide, we’ll explain how to install the Google Ads script on PMax step by step.
Understanding Google Ads Scripts and Performance Max
To get the most out of your advertising efforts, it’s important to understand how Google Ads Scripts and Performance Max (PMax) campaigns work together. These two elements can significantly enhance the efficiency and performance of your campaigns when used effectively.
What Are Google Ads Scripts?
Google Ads Scripts allows advertisers to automate campaign management tasks using JavaScript. By writing or applying pre-existing scripts, you can manage various elements of your campaigns without constant manual intervention.
Key Benefits of Google Ads Scripts:

Save Time: Automate repetitive tasks like bid adjustments, budget pacing, and performance reporting.
Ensure Consistency: Scripts follow precise instructions, reducing errors from manual processes.
Gain Precision: Enable real-time actions based on data inputs, such as optimizing budgets dynamically or generating tailored reports.
For advertisers managing multiple campaigns or looking to scale their efforts, Google Ads Scripts offers an essential layer of efficiency and control.
What Is Performance Max?
Performance Max (PMax) is a goal-based campaign type that uses Google’s AI to deliver ads across all of its inventory, including Search, Display, YouTube, Gmail, Maps, and Discover. It’s designed to complement your existing keyword-based Search campaigns and helps uncover new opportunities for conversions.
Key Benefits of Performance Max:

Dynamic Budget Allocation: Automatically shifts your budget to the highest-performing channels, ensuring the best ROI.
AI-Driven Optimization: Google AI manages bids, audience targeting, creative combinations, and placements to deliver optimal results.
Unified Campaign Management: A single campaign structure gives you access to all Google Ads channels, simplifying management and reporting.
Why It Matters: Performance Max campaigns excel at identifying and reaching untapped audiences, driving performance for goals like sales or local promotions. With features like Smart Bidding and audience signals, PMax leverages real-time data to show the right ad to the right audience at the right time.
Combining the automation power of Google Ads Scripts with the AI-driven capabilities of Performance Max can unlock new levels of efficiency and performance. In the next section, we’ll cover the prerequisites for setting up these scripts for PMax campaigns.
Prerequisites Before Installing Google Ads Scripts to PMax
Before you begin the installation process, it’s important to have everything you need in place. Meeting these prerequisites will make the process smooth and help avoid common issues.
Google Ads Account Access
To install and manage Google Ads Scripts, you must have the right level of access to your account.
Admin or Editor Permissions: Ensure your account has admin or editor rights. Without these permissions, you won’t be able to add or run scripts.
Multiple Accounts: If you’re managing scripts for multiple accounts, consider linking them through a Manager Account (MCC) for easier access.
Understanding PMax Campaign Structure
Performance Max campaigns are different from traditional campaigns, so a basic understanding of their structure is essential:
Asset Groups: These are collections of creative assets such as text, images, and videos used across channels. Each group targets a specific audience or goal.
Audience Signals: Audience signals guide Google AI to the right audience based on your input, such as customer lists or demographic data.
Conversion Goals: These define the actions you want users to take, such as purchases. PMax campaigns are optimized to achieve these goals.
💡Pro Tip: Familiarize yourself with the campaign settings and inputs to ensure your script aligns with your campaign objectives.
Script Requirements
The script you use should be tailored to your Performance Max campaigns.
Pre-Built or Custom Scripts:
Pre-built scripts can save time, especially if they are already tested for similar campaigns.
Custom scripts allow for greater flexibility and can be designed to meet your specific needs.
Alignment with Objectives: The script should focus on tasks relevant to PMax, such as adjusting budgets, managing bids, or generating detailed reports.
Tools You’ll Need
Having the right tools ensures a smoother experience:
Google Ads Script Editor: This is the platform where you’ll create, modify, and manage your scripts.
API Familiarity (Optional): For advanced users, understanding the Google Ads API can help you maximize the script’s capabilities.
JSON Knowledge: Some scripts may require formatting data in JSON, especially when working with campaign elements like asset groups.
With these prerequisites in place, you’re ready to proceed with the installation process. In the next section, we’ll guide you step-by-step through installing the Google Ads script on PMax.
Step-by-Step Guide: How to Install Google Ads Script to PMax

Setting up a Google Ads script for your Performance Max (PMax) campaigns can seem complex, but breaking it down into manageable steps makes the process straightforward. Follow these instructions to get started.
Step 1: Accessing the Script Editor
Log in to your Google Ads account dashboard.
Click on Tools & Settings in the top navigation bar.
Under the Bulk Actions section, select Scripts.
This is where you will manage all your scripts.
Step 2: Creating a New Script
In the Scripts section, click the + Script button to create a new script.
Give your script a meaningful name that reflects its purpose, such as “PMax Budget Optimizer” or “PMax Bid Adjuster.”
Naming your script properly helps with organization, especially if you’re managing multiple scripts.
Step 3: Adding Script Code
If you’re using a pre-written script, copy the code from your source.
Paste the code into the editor window in Google Ads.
Review the script for accuracy and ensure it aligns with your campaign goals.
For advanced users, you can write or modify the code directly within the editor.
Step 4: Authorizing the Script
Click Authorize to grant the script access to your Google Ads account.
Follow the prompts to give the necessary permissions.
This is a critical step to ensure the script can access and modify campaign data.
Double-check that the permissions granted comply with your organization’s data privacy and security policies.
Step 5: Customizing the Script for PMax
Update the script to include parameters specific to your PMax campaigns:
Campaign IDs
Budget limits
Asset groups
Ad schedules
Verify that the script is compatible with PMax’s unique structure, such as its reliance on AI-driven optimizations and asset groups.
Customization ensures the script works seamlessly with your specific campaign setup.
Step 6: Previewing and Testing the Script
Use the Preview function in the script editor to simulate the script’s actions without making actual changes.
Monitor the preview results:
Check if bids, budgets, or schedules are adjusted correctly.
Identify any potential errors or issues in the script’s logic.
Repeat the preview step as needed until the script behaves as intended.
Step 7: Executing the Script
Once satisfied with the preview, click Run to execute the script.
Monitor the script’s initial performance closely to ensure it’s functioning as expected.
Schedule the script for recurring tasks, such as daily budget adjustments, weekly reporting, or other routine actions.
Scheduling ensures the script runs automatically without requiring manual intervention.
In the next section, we’ll discuss best practices for managing Google Ads Scripts with Performance Max and troubleshooting common issues.
Best Practices and Troubleshooting
While Google Ads Scripts can enhance the performance of your PMax campaigns, following best practices and addressing common issues proactively will ensure their effectiveness.
Best Practices

Test and Update Regularly:
Google frequently updates its Ads platform and PMax features. Test your scripts regularly to ensure compatibility with the latest changes.
Update script parameters like campaign IDs or budgets as your campaign evolves.
Avoid Over-Automation:
While scripts save time, maintain manual oversight for creative and strategic decisions.
For example, review ad copy and audience targeting manually to ensure alignment with your broader marketing goals.
Leverage Script-Driven Insights:
Use the data from your scripts to improve campaign elements like creative assets and audience signals.
Analyze reports generated by the scripts to identify high-performing asset groups or refine underperforming campaigns.
Troubleshooting Common Issues
Authorization Errors:
If your script fails to run, it may not have the necessary permissions.
Solution: Reauthorize the script by clicking the Authorize button in the script editor and following the prompts.
Compatibility Challenges:
PMax campaigns have unique features, such as asset groups and AI-driven optimizations, which traditional scripts might not account for.
Solution: Adjust your scripts to accommodate these elements. For instance, ensure the script can manage asset group settings or align with machine learning workflows.
Debugging Failures:
Errors like invalid campaign IDs or missing parameters can cause the script to fail.
Solution: Use the Logs section in the script editor to identify the specific issue.
Verify campaign IDs, audience signal inputs, and other parameters to ensure accuracy.
With these best practices and troubleshooting strategies, you can confidently manage your scripts and maximize the potential of your Performance Max campaigns. Let’s wrap things up in the conclusion.
Conclusion
Installing Google Ads Scripts for Performance Max campaigns allows you to automate tasks, optimize performance, and gain more control over your advertising efforts. In this blog, we’ve covered everything from understanding Google Ads Scripts and PMax to a detailed step-by-step guide on how to install Google Ads script to PMax, along with best practices and troubleshooting tips. With these insights, you’re well-equipped to enhance your campaign management.
For advertisers who want to take their campaigns even further, GoMarble offers the perfect solution. From managing budgets to creating high-performing ad assets, GoMarble ensures every aspect of your campaigns is tailored for success.
Ready to transform your advertising strategy? Book a call with GoMarble today, and let us help you achieve measurable growth and better ROI.