Performance Max Campaigns Australia: Everything You Need to Know

Google’s Performance Max (PMax) is Google’s attempt to replace manual campaign management with AI. You define your budget and conversion goal. Google does the rest.

Sounds great in theory. In reality, it’s complicated.

PMax works brilliantly for some Australian businesses and underperforms for others. The key is understanding what it actually does, when it makes sense, and how to set it up so Google’s AI doesn’t waste your budget.

What Is Performance Max, Really?

Performance Max is a unified campaign type that automatically places your ads across all Google channels in one campaign:

• Google Search
• Google Display Network
• Google Shopping (if you have a product feed)
• YouTube
• Gmail
• Google Maps

You don’t choose which channels to run on or which placements to target. Google’s AI does.

The pitch: Set your budget and conversion goal. Google learns what works and optimises automatically across all channels.

The reality: Google optimises for volume (conversions) and only partly optimises for profitability (cost per conversion). Without constraints, PMax can drive conversions at an unsustainable CPA.

How Performance Max Actually Works

1. You set up asset groups

An asset group is a bundle of creative (images, videos, headlines, descriptions) that Google uses to create ads across all channels.

2. You define conversion signals

Google tracks conversions (form submissions, purchases, calls) and uses that data to improve bidding.

3. Google tests combinations

Google takes your assets and tests thousands of combinations across Search, Display, YouTube, Maps, etc. It learns which combinations convert best.

4. Google optimises bids automatically

Based on conversion data, Google raises bids on high-converting placements and lowers them on low-converting ones.

5. You set budget and ROAS target (optional)

You define how much to spend and can optionally set a ROAS target (e.g., 300% or 4:1 return on ad spend).

Asset Groups: The Foundation of PMax

Your asset groups determine what ads Google can create. Weak assets = weak performance.

Required Assets

Images: 1–15 images (landscape, square, portrait)

• Landscape: 1200×628px
• Square: 1200×1200px
• Portrait: 900×1200px

Use realistic, high-quality images. Stock photography is okay but real customer/product photos perform better.

Headlines: 3–15 text headlines (30 characters each)

Google tests combinations. Variety matters:

• Benefit-driven: “Save $500/Month on Wasted Ads”
• Social proof: “Trusted by 500+ Australian Companies”
• Urgency: “Limited Spots Available — Book Now”

Descriptions: 2–4 descriptions (90 characters each)

Videos (optional but recommended): 1–5 videos

YouTube video placements perform well. Include a 15–30 second video if possible.

Asset Best Practices

1. Vary your assets

Don’t upload 5 nearly identical images. Google needs variety to test combinations.

Upload images with different themes:

• Your product/team
• Customer testimonial
• Benefit statement (with graphics)
• Trust signal (awards, certifications)
• Problem-solution visual

2. Include text in images

Since Google uses your images across Display and YouTube, overlay text on images so the message is clear without the headline.

Example: Image with text “Cut Your Ad Waste by 40%” = clear message even if headline isn’t shown.

3. Localise for Australia

Use Australian imagery, Australian testimonials, Australian currency/metrics. Google’s AI learns from audience signals — Australian assets perform better for Australian audiences.

4. Test variants

If one asset is significantly underperforming, Google will use it less. But it still wastes impressions.

Remove underperforming assets after 2 weeks and replace with new variants.

When to Use Performance Max

Good Use Cases

1. You have strong conversion data (100+ conversions/month)

PMax needs conversion signals to learn. If you have <30 conversions/month, PMax will underperform because Google doesn't have enough data to optimize.

2. You want full-funnel reach

If you need to reach people across Search, Display, YouTube, and Maps in one unified campaign, PMax simplifies setup.

3. You’re willing to sacrifice some control

You don’t choose individual keywords, placements, or bid adjustments. If that makes you uncomfortable, skip PMax.

4. Your conversion goal is clear

PMax optimises for conversions (forms, purchases, calls). If your goal is fuzzy (“brand awareness”) or hard to measure, it won’t work well.

Bad Use Cases

1. Low conversion volume

If you get <20 conversions/month, PMax doesn't have data to learn. Manual campaigns work better.

2. Margin-sensitive businesses

Ecommerce stores with thin margins (10–15%) need strict cost-per-acquisition controls. PMax can overspend.

3. Brand safety is critical

You can’t control which websites show your ads in PMax. If appearing on controversial or low-quality sites would damage your brand, use Standard campaigns.

4. You need keyword control

If your business depends on targeting specific keywords or excluding competitors, standard Search campaigns are better.

Setting Up Performance Max: The Right Way

1. Decide on Conversion Goal

Purchase: For ecommerce. Google optimises for sales.

Leads: For B2B and services. Google optimises for form submissions.

Web Visits: General traffic. Weakest signal — use only if you have no conversion tracking.

Store Visits: For local businesses. Google optimises to drive foot traffic.

Choose the goal that matches your real business outcome.

2. Create Asset Groups

Minimum 1 asset group, maximum 100. Start with 3–5.

Asset Group 1: General value prop

• Images: Your team, product, customer using product
• Headlines: Main benefit, social proof, urgency
• Video: 30-second explainer

Asset Group 2: Problem-solution

• Images: Problem visual, solution visual, transformation
• Headlines: Problem statement, solution, result
• Video: Customer testimonial

Asset Group 3: Specific audience

• Images: Tailored to one persona (e.g., small business owners)
• Headlines: Pain points relevant to that persona
• Video: Case study from similar company

3. Set Audience Signals

Give Google hints about your target audience:

• Add customer match lists (your email list — Google matches to users)
• Add lookalike audiences (similar to your customers)
• Add remarketing lists (website visitors)
• Add demographic info (age range, income, parental status)

These are signals, not hard targeting. Google uses them to guess who to show your ads to.

4. Set Budget and Bidding Strategy

Budget: Daily budget (same as standard campaigns)

Example: AUD $100/day = AUD $3,000/month

Bidding strategy options:

• Maximize Conversions: Google spends your entire budget on conversions, ignoring cost
• Target CPA: You set target cost per conversion (e.g., AUD $100). Google tries to hit it
• Target ROAS: You set target return (e.g., 300%). Google optimises bids to hit it

Recommendation: Start with Target CPA. Set it at 1.5x your actual target CPA (to give Google room to learn).

Example: If your target is AUD $75 CPA, set Target CPA to AUD $112. After 2 weeks of learning, lower it to AUD $75.

5. Set Final URL Expansion (Optional)

You can let Google automatically create landing pages for your products (if you’re running Shopping). Turn this on only if you have a clean, fast ecommerce site.

Most service businesses should turn this off.

Performance Max vs Standard Campaigns

Factor	Performance Max	Standard Campaigns
Setup time	30 mins	2–4 hours
Control	Low (AI decides)	High (you choose)
Conversion tracking required	Yes, 100+ conversions/month	Yes, but works with <30/month
Best for	High-volume, data-rich businesses	Margin-sensitive, brand-safety conscious
Learning period	2–4 weeks	1–2 weeks
Flexibility	Low (can’t pause individual keywords)	High (pause/adjust anything)
Cost per conversion	Often higher initially	Can be lower with optimization

Common PMax Mistakes

1. Launching without enough conversion data

You need 100+ conversions/month for PMax to learn. If you have <50/month, wait. Run standard campaigns first.

2. Setting Target CPA too low

You want CPA = AUD $50. You set Target CPA to AUD $50. Google struggles to hit it, spends wildly, and underspends.

Instead, set Target CPA to AUD $75 initially. Let Google learn. After 2 weeks, lower to AUD $50.

3. Poor asset quality

Blurry images, generic headlines, no video. Google has less to work with. Quality assets = better performance.

4. Not monitoring performance

“Set and forget” is the PMax pitch. But don’t. Check weekly:

• Are conversions still profitable?
• Is CPA within acceptable range?
• Are you seeing spend on unexpected channels (e.g., Maps when you only wanted Search)?

5. Not excluding negative keywords

PMax still needs negative keywords. Add terms you don’t want to trigger ads.

Example: “Free” (if you don’t offer free trials), “-competitor name,” “-cheap knockoff”

6. Over-relying on PMax for everything

Don’t move all your budget to one PMax campaign. It’s one tool. Run PMax + standard campaigns simultaneously.

PMax handles awareness and scaled volume. Standard Search campaigns handle high-intent, profitable conversions.

Monitoring and Optimising PMax

Weekly Checks

1. Conversion volume — Did you get conversions? How many?
2. Cost per conversion — Is CPA within target (±20%)?
3. Channels performing best — Which channels (Search, Display, YouTube, Maps) drive cheapest conversions?

Monthly Optimisation

1. Pause underperforming asset groups — If one asset group has high CPA, pause it
2. Add new assets — Upload new images/videos. Test new headlines
3. Adjust Target CPA — If you’re consistently under-spending, lower Target CPA. If overspending, raise it
4. Analyse by channel — Google Ads shows channel performance. If YouTube is 2x more expensive than Search, consider running separate campaigns instead

Quarterly Review

1. Reassess PMax value — Is this campaign still profitable? Is it better than standard campaigns?
2. Experiment with asset groups — Try completely different messaging (problem-led vs benefit-led)
3. Test bidding strategies — Try Target ROAS instead of Target CPA
4. Consider hybrid approach — Maybe PMax for awareness + standard Search for conversions performs better

Australian-Specific PMax Considerations

1. Account structure

PMax only works well if your conversion funnel is simple. If you have multiple products/services with very different margins, run separate PMax campaigns (one per product line).

2. Seasonal campaigns

Australia’s seasons are opposite to the US/UK. Adjust assets seasonally:

• December–February: Summer imagery, holiday/Christmas themes
• June–August: Winter/cosy themes, back-to-school
• Adjust bids for seasonal demand shifts

3. Mobile dominance

80% of Australian Google Ads traffic is mobile. Ensure all assets look good on mobile. Test headlines and images at small sizes.

PMax Timeline: What to Expect

Week 1 (Learning phase):

• Campaign goes live
• Google tests asset combinations
• Conversion volume is low (learning mode)
• Expect higher CPA than target
• This is normal. Don’t panic.

Week 2–3 (Optimisation phase):

• Google has enough data to optimise
• Conversion volume increases
• CPA starts moving toward target
• Conversion volume and cost stabilise

Week 4+ (Stable phase):

• Campaign performs consistently
• CPA is near (or at) target
• You can monitor and adjust based on performance

Performance Max + Standard Campaigns: The Hybrid Approach

Many successful Australian businesses run both:

PMax campaign:

• Broader targeting
• All channels
• Awareness + consideration
• Volume-focused

Standard Search campaign (in parallel):

• High-intent keywords
• Search only
• Bottom of funnel
• Profitable, margin-aware

Example: An Australian software company runs PMax reaching everyone interested in “project management software.” Meanwhile, a Standard Search campaign bids on high-intent terms like “best project management software” + “project management software Australia” + “project management software pricing.”

Total conversions = 150/month (100 from PMax awareness, 50 from Search intent). But Search converts at 3x lower CPA because those users are further down the funnel.

Deciding: Standard Campaigns vs Performance Max

Use Standard Campaigns if:

• <100 conversions/month
• Your CPA target is tight (thin margins)
• You need control over keywords and placements
• Brand safety is critical

Use Performance Max if:

• 100+ conversions/month
• You want unified reach across all Google channels
• You’re willing to sacrifice control for scale
• Your ROAS target is flexible (not margin-dependent)

Use Both if:

• You have budget for both
• Standard handles bottom-of-funnel intent
• PMax handles awareness and consideration

---

Anitech runs and monitors Performance Max campaigns with human oversight. We set it up properly, watch the data, and adjust. Book a Google Ads review

Learn more:

• Google Ads Australia: Complete Setup & Optimisation Guide
• PPC Advertising in Australia — The Complete Guide