How Do I Add Audience Signals to Performance Max?

A signal does not sit on the campaign. It sits on an asset group, which is the set of creatives inside the campaign. So a campaign with three asset groups can carry three different signals.

Google's own instructions are short. Go to Audiences within the Campaigns menu. Find your asset group, and the Audiences section beneath it. Give the audience a unique name, add your data sources, and save. To change one later, Google says to open the asset group Summary view and click the pencil icon next to the signal.

Google renames these menus every so often, so hunt for the word Audiences rather than following a fixed path. What the levels do is stable. What the buttons are called is not.

Google lists three kinds of ingredient. Your own data comes first: website visitor lists, and customer lists such as email and subscription lists. Then custom segments, where you add the keywords or phrases that represent your targeted audience, or URLs and apps. Then interests and detailed demographics, which Google describes as reaching user groups based on what they are passionate about and their habits and interests, or on long-term life facts.

The first bucket is the one worth the effort. A list of people who already bought from you is a real description of your buyer. An interest category is a guess somebody else made.

This is the part that costs people money. Google says a Performance Max campaign may show ads to relevant audiences outside of your signals if they have a strong likelihood of converting. So you are not drawing a boundary. You are telling Google where to start looking.

If you actually need a fence, it has to come from the controls that really are hard limits. Which products sit in the campaign. Your exclusions. Your budget. Your locations. Adding a tight signal and assuming nobody else will see the ad is how a campaign quietly spends its month somewhere you never picked.

Google's own wording is that a signal helps its AI optimize toward the goal you picked. That is a nudge, not a switch. On a new campaign with no conversion history, a good signal helps the system find its feet faster. On a campaign that has run for months on plenty of data, do not expect a signal edit to be the thing that turns it around.

Scaley AI does not manage your audience signals. There is no signal builder in the plan and we are not going to pretend there is.

Scaley works on the parts Google does not decide for you. It tags every SKU by margin and velocity. Those tags sync into your Merchant Center custom labels daily, so a campaign can bid on profit rather than revenue. It also surfaces the search terms and placements worth excluding. It watches the account 24/7, prepares each move with the reason attached, and writes nothing until you approve it.

Picking the signal is a human job anyway, and a good one. Which customer list describes your best buyers, which keywords a real customer would type, whether the segment is worth building at all. That is a senior buyer or an agency, and an hour of their thinking beats any tool here.

If you want software that builds its own if-this-then-that rules over a campaign, look at Optmyzr. It publishes Rule Engine Automations on all three plans, weekly or monthly on Essentials and daily on Premium. Scaley has no rule builder in it. It prepares the moves and waits for your yes instead.