How to Optimise ROAS in Facebook Ads: The Complete 2025 Guide

“Why isn’t my ROAS going up?”

It’s the question we get asked most often. And usually, the answer isn’t a single magic “hack”.

📌 What you’ll learn: 7 concrete strategies that have helped us achieve a 4–8x ROAS for clients. Tested on €7M+ in ad spend.

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📊 What ROAS should you aim for?

ROAS = Revenue / Ad cost

Business Type	Minimum	Good	Excellent
Fashion	2.5x	4x	6x+
Beauty	3x	5x	8x+
Home & Garden	2x	3.5x	5x+
Electronics	1.8x	3x	4x+

💡 Important: The minimum ROAS depends on your margin. A 50% margin + 2x ROAS = break-even.

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🏆 Strategy #1: Advantage+ Shopping

In 2025, ASC (Advantage+ Shopping Campaigns) are the queen of eCommerce.

Recommended setup

Campaign 1: Main ASC (70% budget)
├── All products
├── Audience: Broad
└── Creative: 3-5 variants

Campaign 2: Manual Retargeting (30% budget)
├── Website visitors 7 days
├── Add to cart - no purchase
└── Past purchasers (upsell)

What you set	Value
Daily budget	Min. €50/day
Catalogue	Complete
Pixel events	ViewContent, AddToCart, Purchase

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🎨 Strategy #2: Creative Testing

80% of success comes from creative. The rest is optimisation.

Types that work

• ✓ UGC - Authentic video testimonials
• ✓ Founder Story - The brand’s story
• ✓ Problem-Solution - Show the problem → the solution
• ✓ Before/After - Visible results
• ✓ Unboxing - The unpacking experience

Testing framework

Week	What you do
1-2	Launch 5 creatives, €10-15/day each
3	Identify the top 2 (CTR >1%, ROAS > target)
4	Iterate on the winners with different hooks

🎯 The rule: Test constantly. What works today may not work tomorrow.

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💰 Strategy #3: Value Optimisation

Not all conversions are equal. A 500 RON order > a 50 RON one.

How to enable it

1. Events Manager → Settings
2. Enable “Value Optimization”
3. In the campaign: “Maximize value of conversions”

Typical result: +15–30% ROAS in the first 30 days.

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🧹 Strategy #4: Audience Hygiene

Mistake #1: Not excluding recent buyers.

Essential exclusions

Exclude	From which campaigns
Buyers 7-14 days	Acquisition
Employees + family	All
Customers with returns	Acquisition

Checklist

• Custom Audience purchasers updated
• Pixel events deduplicated
• Catalogue free of out-of-stock products
• Exclusions on all acquisition campaigns

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🌐 Strategy #5: Landing Page

The best ad can’t save a poor landing page.

Above the fold (the first 3 seconds)

• Headline with the main benefit
• Quality image/video
• Visible price
• Trust badges

Social Proof

• Star reviews
• Number of satisfied customers
• Testimonials with real photos

Technical

• Load time < 3 seconds
• Mobile-first
• Sticky Add to Cart button on mobile

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📈 Strategy #6: Smart Bidding

Strategy	When to use it
Lowest Cost	Limited budget, you want volume
Cost Cap	You know your exact target CAC
ROAS Goal	You have history, you want control
Bid Cap	Competitive auctions

Minimum budget formula

Daily budget = (target CPA × 50) / 7

Example: CPA 30 RON
Budget: (30 × 50) / 7 = ~214 RON/day

💡 Meta needs ~50 conversions/week for optimal optimisation.

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📐 Strategy #7: Correct Attribution

Recommended setup

• ✓ CAPI mandatory
• ✓ UTM parameters for GA4
• ✓ Post-purchase surveys

Reality Check formula

Source	Weight
Meta ROAS	70%
GA4 ROAS	30%

Real ROAS ≈ the weighted average

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⚡ 30-Day Plan

Week 1: Audit

• Check Pixel + CAPI
• Audit the structure
• Set exclusions

Week 2: Creative Sprint

• 5 new creatives
• Launch an A/B test
• Landing page tracking

Week 3: Optimisation

• Analyse the creatives
• Adjust the bid strategy
• Scale the winners

Week 4: Scale

• +20% budget on the profitable ones
• Test new audience segments
• Document the learnings

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⚡ TL;DR

Strategy	Impact
ASC + Retargeting	🔴 High
Constant creative testing	🔴 High
Value optimisation	🟡 Medium
Audience hygiene	🟡 Medium
Landing page	🟡 Medium

🎯 Conclusion: ROAS doesn’t grow from a single hack. It’s the combination: the right structure + constant creatives + clean data + continuous iteration.

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Want to discuss your strategy?

→ Book a 15-minute consultation and we’ll analyse your account.