Performance Max Asset Groups: How Many Do You Need?

In Performance Max, organize asset groups around a service, theme, or audience. The number you need follows from the offers that require distinct creative. In my work with service businesses, I find it useful to connect an asset group to a service line with its own landing page.

An asset group brings together headlines, descriptions, images, videos, and sitelinks. Google AI combines the creative into ads for different channels. Audience signals are optional suggestions for AI, not targeting settings. For the wider campaign context, see my Performance Max guide.

How should you divide your asset groups?

Consider a cleaning company offering ongoing office cleaning and cleanup after renovation. I would prepare separate creative for these services. The customers have different jobs to get done, so the pictures and reasons to book should reflect those needs.

Google supports organizing groups by theme, product, service, or audience. Before adding a group, ask: can I write a distinct offer for it? If only the name changes, revisit the plan.

According to Google, you can set up only one asset group before publishing a campaign. Additional groups become available after launch. You can still plan the service structure and prepare the creative beforehand.

According to Google, each group can have up to 50 search themes. Choose the group’s focus before preparing that list. See the separate guide to Performance Max search themes for that task.

How many headlines, images, and videos should you prepare?

According to Google, each group should include text, images, and video, with as many suitable assets as possible. The table separates text requirements from the recommended video quantity.

According to Google, your business name has a 25-character limit and must match your domain or verified legal name. Business names and logos belong in campaign-level brand guidelines.

Ask your specialist for headlines that explain different reasons to book: the service, the customer’s problem, and how you deliver the work. Then read them as a customer. Rewording the same sentence does little to explain why someone should choose your business.

What does Ad Strength tell you, and how long should you wait?

Ad Strength helps you check whether the group has enough assets. If you have supplied very little creative, use the indicator to review coverage. I assess business results separately; asset coverage alone does not answer whether the inquiries are useful.

If the campaign’s primary conversion goal is calls or leads and the group lacks call or lead form assets, Google marks it Incomplete.

According to Google, it may generate one or more videos from the group’s assets if you do not add your own. Google still recommends uploading at least one video.

According to Google, Ad Strength and the asset group status can take several days to update after edits. Google recommends waiting 2 to 3 weeks before deciding to replace weak assets. That is guidance for evaluating creative changes, without a promise that the campaign will become profitable by then.

Where is the report, and what does “Added by” mean?

Open Campaigns, go to Asset groups, select your Performance Max campaign, and switch from Summary to Table. Use Columns to add conversions, conversion rate, cost per conversion, and conversion value if you measure it.

The Added by column identifies whether an advertiser uploaded an asset or Google AI created or enhanced it. Review the content against the actual service: does it make a promise your business can deliver?

When examining individual assets, do not add their conversions together to calculate the campaign total. Conversions are not split between an ad’s components, so their sum will not equal campaign conversions. Google’s reporting guidance explains this distinction.

Should you remove a group with a higher CPA?

CPA means cost per conversion. Removing the more expensive group can look like an obvious saving. However, Google advises against removing asset groups solely because they have higher CPA or lower ROAS: they still contribute to the campaign goal.

Google’s explanation focuses on the return from additional spending, beyond a comparison of averages. Before changing the structure, ask your specialist how the proposed change relates to the whole campaign’s results. “This row costs more” is not a complete business case.

When this does not apply

Reconsider a split by service if the proposed copy and landing pages are interchangeable. Check that during preparation, before creating additional groups.

Another boundary is campaign type. Asset groups and ad groups are different entities, so do not transfer this structure mechanically to another campaign type. The reporting instructions above cover the web interface; Google Ads Editor workflows are outside this guide.

Questions and answers

Must I fill every slot?

Google recommends a full set of suitable assets. Meet the requirements and prepare meaningful variations. Avoid filling space with repeated promises.

Can I organize groups by audience?

Yes, Google supports that approach. Use it when you can prepare a distinct message and creative for that audience.

Should I rebuild groups regularly?

In my experience, rebuilding groups resets their accumulated statistics. I keep a clear service structure and improve individual assets; a new month is no reason to rebuild.

Before removing a group to save money, check its assets and ask your specialist to explain its results in the context of the campaign.