How can I tell if my ad targeting settings are causing unnecessary spend?

Why default settings leak money

A targeting setting is different from a targeting choice. A choice is who the campaign was designed to reach. A setting is the toggle the platform applied when the campaign was created, before anyone read the help article that explained what the toggle does. Defaults exist to grow platform revenue, not account ROAS. Most leak audits trace half of wasted spend back to four or five settings the founder did not know were on.

The settings below live in the campaign settings page, the audience section of the ad set, or the asset group inside Performance Max. Each one takes under a minute to find and under five minutes to fix.

Setting 1: location target set to “presence or interest”

In Google Ads, every campaign has a location-target option labeled “Presence or interest: People in, regularly in, or who’ve shown interest in your targeted locations.” That is the default. The alternative, “Presence: People in or regularly in your targeted locations,” is buried under “Location options” inside the campaign settings page.

The default serves impressions to anyone who searched something about the target area from somewhere else. A user in Florida searching “best dentist Spokane” matches a Spokane dental campaign on the default setting. For a local service business, that impression is wasted by definition.

Switch to “Presence” for every local service campaign and ecommerce campaign that ships to specific countries. The toggle lives under Settings > Location options inside each campaign.

Setting 2: optimized targeting on Display and Demand Gen

Google Display and Demand Gen campaigns have a checkbox labeled “Optimized targeting” that is on by default. The label sounds like an improvement. The behavior is audience expansion. The platform looks at the seed audience, then serves impressions to lookalikes Google’s models believe will convert.

On a clean account with strong conversion signal, optimized targeting can help. On an account with weak signal, broken tracking, or an early conversion model, it spends budget teaching the algorithm using bad data. The result is impressions on users who match no buyer profile in the CRM.

Turn it off until the conversion model has stabilized. Find it inside the ad group settings under “Audience segments.” Re-enable only after the tracking stack is verified and the conversion volume per ad group clears one hundred per month.

Setting 3: Advantage+ audience on Meta

Meta Ads Manager added “Advantage+ audience” as the default audience configuration on most new ad sets in 2024. The setting takes whatever audience signals are entered and treats them as suggestions. Meta is free to expand beyond the defined interests, lookalikes, and custom audiences when the model believes another audience will perform better.

The leak is the same shape as Google’s optimized targeting. The seed audience matters less every week the campaign runs. Spend share drifts toward whatever audience the algorithm finds cheapest, which is rarely the audience the offer was built for.

The toggle to disable expansion lives inside the audience section of the ad set, labeled “Switch to original audience options.” Use original audiences for any campaign where the buyer profile is narrow, the AOV is high, or the conversion volume is below fifty per week per ad set.

Setting 4: device bid modifiers left at zero

Every Google Ads campaign has device bid modifiers for mobile, desktop, and tablet. The default for all three is zero percent. The default treats every device as equal value, which is rarely how the conversion data reads.

Pull the device report in the campaigns view for the last ninety days. Compare conversion rate and ROAS across devices. For most ecommerce brands, desktop converts at one and a half to two times the rate of mobile, while mobile takes the majority of impressions. For most service businesses, mobile carries the phone calls and desktop carries the form fills. Without bid modifiers, spend distributes by impression availability, not by conversion economics.

The fix is a device modifier in line with the performance gap, applied at the campaign level under Settings > Devices. Start with plus or minus twenty percent and adjust monthly.

Setting 5: default content exclusions on Display, Video, and Performance Max

Google’s content exclusions list is the setting that controls which categories of placements an ad can run on. The default exclusions are minimal. Tragedy and conflict are excluded automatically. Mature themes, sensitive social issues, profanity, and embedded video on third-party apps are not.

The result is brand-safety placements no founder would approve if shown a screenshot. Display placements on parked domains. Video pre-roll on UGC channels with no editorial review. Performance Max placements inside mobile game ad units.

Open the campaign, then Settings > Additional settings > Content exclusions. Check every box that does not match the brand. For most considered-purchase brands, that is every sensitive category plus the parked-domain and embedded-video inventory. Repeat for every Display, Video, Demand Gen, and Performance Max campaign in the account.

Setting 6: ad schedule defaulted to 24/7

Every new campaign runs all day, every day. The default ignores the conversion-by-hour pattern the account shows. For a B2B service campaign, the conversion window is usually nine to five on weekdays. For a furniture ecommerce brand, evenings and weekends carry the volume. For a local service business with a phone-call goal, calls outside business hours are voicemails that never get returned. Furniture and home decor clients see this concentrated on evening and weekend blocks, with the schedule patterns repeating across the vertical.

Pull the day and hour report under “When and where ads showed.” Sort by conversions and conversion rate. Any hour block with less than half the average conversion rate of the campaign’s best block is a candidate for a schedule pause or a negative bid modifier.

The setting lives under Settings > Ad schedule. Start by pausing the lowest two hour blocks, then revisit after thirty days. The Setup Audit flags schedule defaults automatically on every campaign reviewed.

Catching settings drift before it compounds

Targeting settings drift in two directions. New campaigns inherit defaults that were never reviewed. Old campaigns get edited by new staff who toggle settings back on without context. The structural answer is a settings review on a calendar, not a one-time cleanup.

On a regional healthcare-services account I work with, ninety days of Meta spend ran just over eleven thousand dollars against 1.2 million impressions and thirty-three thousand clicks. A 2.66 percent click-through rate at a 33-cent CPC reads as a healthy awareness build. The settings audit caught what the dashboard would not: location targeting was set to “presence or interest” instead of presence only, the device modifier was untouched against an audience that converted on desktop, and the content exclusion list was at default coverage on a brand that should not have run on parked domains or embedded UGC video. Same six settings every month catches the same six leaks.

Founders who want me to run the settings sweep against the live account instead of running it solo can send the account read-only via the contact form; the process page describes how the sweep fits inside a paid engagement.

Audit the six settings above on the first of every month. Confirm location is presence only, optimized targeting and Advantage+ expansion match the documented audience strategy, device modifiers reflect the last ninety days of conversion data, content exclusions are at full coverage, and ad schedule reflects the conversion-by-hour pattern. The diagnosis library at wasted ad spend covers the related symptoms a settings leak produces in the reports.