Best Practices for creative assets in Performance Max

Running a Performance Max campaign requires not only a product feed but also a variety of creative assets such as headlines, descriptions, images, and videos. In this article, we'll explore whether it's worth focusing on content creation and how to prepare the most engaging content for your campaigns.
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Marek Turnhofer
October 31, 2024

Is a “feed-only” Performance Max campaign better?

One of the common frustrations among PPC specialists is the lack of control over how Performance Max ads are displayed. Despite putting significant effort into creating all the assets, you have limited control over how those assets are applied and combined. Does this mean you should abandon creating assets altogether and run a feed-only Performance Max campaign? In theory, you could rely solely on the shopping channel to serve ads.

However, Google states that even in a feed-only campaign, assets will be generated from the feed automatically. This means you lose even more control over your ads' appearance. While this doesn’t necessarily mean your campaign’s performance will suffer, it does reduce your ability to influence the outcome. Therefore, it's definitely worth investing time and effort into your creative assets.

TIP: If you still prefer using feed-only Performance Max campaigns, check Google's August 2023 update, which introduced auto-generated ads.

Tips for optimizing creative

Now that we have the main question sorter, here are some tips of how you can optimize each of the creative to get the best results. Let's start with the text assets.

Text specs according to Google

Headlines and long headlines

Headline specs:

  • 30 characters max, at least one should have 15 characters or less
  • Minimum of 3 headlines, maximum of 15

Long headline specs:

  • 90 characters max
  • Minimum of 1, maximum of 5

The first thing you want to do when crafting your copy is to include the most relevant keywords for the specific Asset Group. It can be the same keywords you've used as Search Terms of your campaign. Think of it as if you were the person searching for the products in the connected listing group. Use SEO tools like Semrush or Ahrefs to identify long-tail keywords and their search volume. If you prefer not to pay for these tools, Google’s Keyword Planner, which is free within your Google Ads account, will also do the trick.

Save some headlines specifically for your Unique Selling Propositions (USPs), as these will help you stand out in a crowded marketplace. USPs highlight what makes your product or service different from the competition and can be a powerful driver of engagement. When crafting headlines, be sure to mention key USPs that resonate with your target audience. These could include your customer service, delivery time, or an exclusive feature.

For certain placements, it’s worth adding a call to action, especially in shorter headlines. Since there is a requirement to include at least one headline with fewer than 15 characters, use it for calls to action like “Buy Now” or “Try for Free.”

Long headlines: Since you can only use 5 long headlines, try to include all the important tips in each one while keeping them clear and easy to understand. Make sure your headlines use relevant keywords, highlight what makes your product special, and include a strong call to action. This will help your headlines be both informative and convincing, making the most impact in your Performance Max campaign.

Example: Transform your home with smart lightning. Easy setup, 1 day delivery. Shop now.

Descriptions

Specifications:

  • 90 characters max, at least one should have 60 characters or less
  • Minimum of 2, maximum of 5

Many of the points mentioned above for headlines still apply. However, this time you have more space to address your customers' needs. Focus on how your products solve common problems and highlight the value and benefits for your customers.

So to sum it up, follow these tips for descriptions:

  • Be clear: Avoid including too many details in one description. Instead, split them into two separate descriptions if needed.
  • Highlight USPs: Mention special offers, discounts, and other reasons why customers should choose you over competitors.
  • Use relevant keywords: Incorporate keywords where possible, but don’t overstuff the description.
  • Address customer needs: Explain how your product solves customer problems.
  • Include a call to action: This creates a sense of urgency and encourages immediate action.
  • Use maximum characters: Take advantage of the character limit to make your ad as prominent as possible.

Image assets

Image assets are the most important content of many of your ad variations. First, ensure that all your images meet the format requirements to avoid disapprovals.

Image specs according to Google

Other image specifications:

  • File format must be JPG or PNG
  • Maximum file size of 5 MB

Centralize key content

Even if you upload images in the correct format, they might still be used in dynamic variations or slightly cropped. To prevent displaying distorted images, ensure that the important content is centered within the central 80% of the image. This safe area will not be cut off, regardless of the device screen size.

Focus on branding

Make sure your brand is easily recognizable. Use the same colors, fonts, and logos in all your images to build a strong and consistent brand identity. This helps people remember your brand and makes it look professional. Even if the image gets resized or cropped, your brand’s key elements should still be clear. This consistency helps build trust and makes your ads more memorable.

Catch people's attention

Your images need to look attractive to grab attention. Use high-quality, clear pictures that look good on any device. Choose interesting design elements to stand out. Avoid adding too much text or too many details, as this can make the image look messy. A visually appealing image will draw people in and make a good impression of your brand.

Ensure the text is readable

Many brands make this mistake. Since most people use mobile phones to browse the internet, your text needs to be easy to read on small screens. Use short and simple phrases and make sure the font size is big enough. Avoid putting too much text in the image, as it can be hard to read quickly. Keep it clear and easy for everyone to understand.

Videos

Google states that video ads play a critical role in Performance Max success. By uploading video assets when creating your asset group, you can ensure that your ads are eligible to appear across a broader range of video placements.

Video specs according to Google

Other video specifications:

  • HD video for optimal quality
  • MPG (MPEG-2 or MPEG-4) formats
  • At least one vertical video between 10-60 seconds for Shorts eligibility

Any video is better than none

Google states, “If you don’t add a video to your Performance Max asset group, one or more videos may be auto-generated from the assets in your group.” To ensure you control the video content (which is recommended), create your own video assets.

Take advantage of the video templates

When creating a video, you have three main options: make your own video, generate one with AI (more about that below), or use templates. Since this feature is relatively new, we mainly rely on Google's suggestions. There are many templates available that you can choose from and customize to some extent.

These templates allow you to quickly create brand or product videos that follow best practices. You can also add music from the library and use AI to generate a voice-over for the video. Just keep in mind that currently, only the most common languages are supported for this feature.

TIP: Not sure where to find it? Simply navigate to your “Asset Group,” click “+ Videos,” and then select “New” in the upper right corner. 
User interface of the video templates for Performance Max

Youtube Shorts are hit nowadays

I bet you've heard that YouTube is one of the most popular social media platforms. However, you might not know that the Shorts format, similar to Instagram Reels, has gained significant popularity in recent years. While vertical video is not required, we strongly recommend including it.

Quality matters

Keep in mind that your ads may appear on large computer screens as well as 4K TVs. To ensure your message is clear and the video quality remains high, avoid pixelation. While the minimum quality requirement is HD, we strongly recommend using Full HD. For horizontal formats, the resolution should be 1920 x 1080 pixels; for vertical formats, 1080 x 1920 pixels; and for square formats, 1080 x 1080 pixels.

Does “ad strength” help?

Yes, it does. However, not in a direct way. Ad strength is a useful indicator to help you determine if your campaign's assets are meeting the requirements needed to maximize performance. Over time, you may notice a decrease in your Ad Strength scores. This usually means Google has new data and suggestions for improving your asset mix to help you achieve better results.

What AI can do for you

Should you rely on AI? It depends. In most cases, AI can provide significant added value. However, its effectiveness also depends on how well you guide it in creating the right content. By starting with your website, Google AI can understand what you’re advertising and offer or generate text, images, logos, and video assets accordingly.

Note: This feature (and its parts) is still rolling out globally and may not yet be available in all countries.

Before using integrated AI, consider these points:

  • Do you have enough time to create perfect assets?
  • Are you experiencing a talent shortage?

AI can be a valuable tool for brands that lack in-house creative resources. It is often faster to generate visual content through AI. However, the quality will improve only if you invest time and creativity into the process. The best results require more than just a simple prompt; you need to either invest time in refining your prompts or in your own creative input.

Generating text assets

Google generates all the text assets with an understanding of what makes ads perform well. It uses your website, product listing and provided service summary. What's good about generated text assets is that it can serve more like an inspiration and you can easily exclude anything you don't like or improve it.

Source: Google

Generating image assets

While text can still be acceptable and high-quality, images are more challenging. Your options are limited here. Even if the photos are good, adding other elements like text, colors, or icons can be nearly impossible.

Here is an example of a prompt and the results. As you can see, it even misspelled the word “design.”

Automated assets

Automated assets use existing content from your site to fill in gaps within your asset groups. This means that Google or Microsoft will create ads based on the content you already have.

Automatically created assets might not be as effective as those you create yourself. If certain parts of your business should not receive ad spend, consider using site links or price extensions instead. If you’re unhappy with the automatically created assets, turn off the feature and review your website. The text used for auto-generated assets often comes from your landing page or site, so poor content could negatively impact your ads and organic performance.

TIP: This option is usually on by default. To turn it off, uncheck the box during setup or change the setting in your campaign options.
Automatically created assets in campaign settings

URL Expansion

URL expansion allows Google to crawl your website and create ads based on other pages that appear relevant. This process is similar to Dynamic Search Ads (DSAs) in Google Ads. URL expansion can often lead to suboptimal results unless you have a well-prepared exclusion list. It’s particularly important if you have a highly optimized site and want to avoid having irrelevant pages included in your Performance Max campaigns.

While URL expansion helps you learn how users search, mixing too many ideas in your asset groups can lead to mixed data. Use URL expansion only if your asset groups are highly segmented.

A/B testing is your friend here

You can easily review the performance of each asset and you can use these insights to replace it or polish it to get the best results possible. While it's quite difficult to review the performance of each in Google, Dotidot does the evaluation for you.

This is how easily you can identify non-performing assets in Dotidot

Run Performance Max with Dotidot

Maybe your first question would be why you should run the Performance Max campaign in Dotidot. This is what Dotidot can do:

  • Import your existing campaigns without losing any data in the Ad system.
  • Create a winning combination of Search, Shopping, and Performance Max campaigns.
  • Optimize your Performance Max at the product level for maximum effectiveness.
  • Join the CSS program and save 20% on each click.
  • Utilize 3rd party script insights to uncover detailed performance data.

Interested? Try it yourself! All new Performance Max campaigns come with 6 months FREE and do not count toward your subscription limit. This offer is available until January 31, 2025. Learn more about Performance Max in Dotidot.

Summary

Creating effective Performance Max campaigns involves more than just using a product feed; it requires crafting compelling headlines, descriptions, images, and videos. While feed-only campaigns offer less control, investing in high-quality, custom creative assets can enhance your campaign's performance. 

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Marek Turnhofer
PPC specialist & Content Creator
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