How to Run Facebook Ads for a SaaS Product

Quick Answer

To run Facebook ads for a SaaS product, use the Conversions objective optimised for Trial Started or Account Created. Target 1% lookalikes of paying customers, layer with 2-3 stacked interests. Budget $100-500/day. Expect CAC of $30-150 for self-serve SaaS under $50 ARPU and $300-1,500 for sales-led SaaS over $200 ARPU.

SaaS ads have to align with sales motion

Self-serve SaaS sells from the ad. Sales-led SaaS uses ads to fill a pipeline. Get this wrong and you'll burn budget. A $9/mo tool doesn't need a demo. A $999/mo tool can't sell from a single click.

Pricing model	ARPU	Ad goal	Funnel
Freemium	$0-15	Sign-up	Direct
PLG self-serve	$15-99	Trial start	Direct
Hybrid	$100-500	Trial + sales touch	Trial then nurture
Sales-led	$500+	Demo booking	Lead form > demo
Enterprise	$2k+	Marketing-qualified lead	Long nurture

Targeting that works for SaaS

Stack three:

1. Lookalike 1% of paying customers (gold standard, needs 100+ source records)
2. Lookalike 1% of email list (use as fallback if customer list too small)
3. Interest stack: competitors, adjacent tools, software categories, job titles

For B2B SaaS, layer in job titles and seniority. For B2C SaaS (consumer apps), age and lifestyle interests work better than job titles.

Creative that converts

Three angles:

1. Problem-aware ("Tired of using 4 tools to do one thing? We replace them.")
2. Demo-led ("Watch this in action: 30 seconds.")
3. Comparison ("Why teams switch from [Competitor] to [You]")

Best creative formats:

• Screen recording of the product solving a specific problem (15-30 sec)
• Founder talking head explaining the why behind the product
• Carousel showing before/after of using the tool

Avoid generic "boost your productivity" angles, they don't differentiate.

Campaign template (PLG)

Campaign: [Product] – Trial Signups
Objective: Sales (Conversions)
Optimisation event: Trial Started (or Complete Registration)
Daily budget: $200 (CBO)

Ad Set 1: Lookalike (paying customers)
- 1% LAL of customers (last 180 days)
- Age: 25-54
- Placements: Auto

Ad Set 2: Lookalike (email list)
- 1% LAL of email subscribers
- Exclude trial users and customers

Ad Set 3: Interest stack
- 4-6 stacked competitor + category interests
- Job titles (for B2B)
- Exclude email list and customers

Creatives:
- Ad 1: 30-sec product demo screen recording
- Ad 2: 60-sec founder video (why we built this)
- Ad 3: Static comparison ([You] vs [Competitor] table)
- Ad 4: Carousel of 5 features with screenshots

CTA: Try Free
Landing page: Sign-up page (not homepage), single CTA, social proof above the fold

Pixel events to fire

For SaaS, the events that matter:

• ViewContent on pricing page
• Lead on trial signup
• Complete Registration on account created
• Subscribe on first paid conversion
• StartTrial as a custom event for trial-to-paid optimisation

Send these via CAPI, not just Pixel, because iOS users dominate the SaaS audience.

Trial-to-paid is the lever

Cheap trials don't matter if they don't convert to paid. Track trial-to-paid weekly. A $20 CAC trial that converts at 5% is a $400 customer cost. A $40 CAC trial that converts at 25% is $160. Optimise the funnel between trial and paid before scaling spend.

CAC benchmarks

ARPU/MRR	Self-serve CAC	Sales-led CAC	Payback target
$9-29/mo	$20-60	n/a	6-12 months
$49-99/mo	$50-150	$200-500	9-15 months
$199-499/mo	$150-400	$500-1,500	12-18 months
$999+/mo	n/a	$1,500-5,000	15-24 months

What kills SaaS ads

• Sending traffic to the homepage instead of a focused signup page
• Asking for credit card on trial when competitors don't
• Optimising for clicks instead of trial signups
• Targeting "small business owners" without layering tighter
• Forgetting to exclude existing customers and trial users
• No retargeting layer for trial users who didn't convert

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