Retargeting audiences

Retargeting = show ads to users who already interacted with your brand (visited site, abandoned cart, viewed video, engaged Page). Built on pixel + custom audiences. Best for warm mid-bottom funnel — higher conversion rates than cold prospecting, but smaller audience sizes.

Who is this for

E-commerce buyers running abandoned-cart retargeting. SaaS marketers re-engaging trial users. Anyone closing the gap between site visit and conversion.

Prerequisites

• Pixel installed + firing events (see meta-105 pixels and CAPI, gs-110 setup pixel)

• Sufficient website traffic to build audiences (>1.000 visitors over the retention window)

• Custom audience created in the platform's audience manager (Wevion uses, doesn't create)

Common retargeting audience types

Setup flow (Meta example)

Step 1: Create custom audience in Meta Business Manager

1. Meta Business Manager → Audiences → Create Audience → Custom Audience

2. Pick source:

   • Website (pixel-based)

   • App activity

   • Customer list (CSV upload)

   • Engagement (Page, IG, Video, Lead Form)

3. Define rules:

   • Pixel: pick events (PageView, AddToCart, Purchase, etc.)

   • URL filter (e.g. URL contains /checkout)

   • Retention window (default 30 days, configurable 1-180)

4. Save with descriptive name (e.g. "Cart abandoners 30d")

Step 2: Wait for audience to populate

Custom audiences need time to reach the platform's minimum size (Meta: 100 minimum, 1.000 recommended). Active traffic site: same-day. Low traffic: days/weeks.

Step 3: Surface in Wevion

Within 15 minutes, the new audience appears in Wevion's Pro mode → adset → Custom audience selector.

Step 4: Build retargeting campaign

In Wevion Pro mode:

• Create new campaign with conversion objective (Sales / Leads)

• Adset audience: pick the custom audience (e.g. "Cart abandoners 30d")

• Optionally: combine with EXCLUSION audience to avoid re-targeting recent converters

• Set budget (smaller than prospecting; retargeting is high-CPM low-volume)

• Set creative: tailored to the funnel stage (e.g. discount offer for cart abandoners)

Step 5: Add exclusions (recommended)

To avoid wasting spend on existing customers:

• Adset audience: include "Cart abandoners 30d"

• Adset audience exclusions: "Past 30-day purchasers" custom audience

Result: ads only shown to people who started checkout but haven't bought, in the last 30 days.

Step 6: Monitor frequency

Retargeting audiences are small — high-frequency exposure is the risk. Monitor adset frequency:

• < 4: healthy

• 4-7: watch creative fatigue

• 7: definitely refresh creative or pause to give audience a break

Audience overlap warnings

If you run multiple retargeting campaigns simultaneously, audiences may overlap. Wevion's Audience Saturation AI (cc-112) detects + alerts.

Mitigations:

• Combine into single campaign with multiple adsets (one per audience layer)

• Use mutual exclusions

Retention windows

Most platforms cap at 180 days. After that, the user data ages out.

Customer list retargeting (CRM-uploaded)

For high-LTV customer re-engagement OR exclusion lists:

1. Export customer emails from your CRM (Shopify, WooCommerce, HubSpot)

2. Meta BM → Custom Audience → Customer List

3. Upload CSV (emails hashed for privacy)

4. Use in Wevion: cross-sell campaigns, lookalike source (cc-110), or exclusion

Wevion's HubSpot integration can export contact lists for direct upload to Meta.

In Wevion's launchers

Pro mode

• Adset → Custom audiences (multi-select) — include

• Adset → Custom audiences exclusions — exclude

Express mode

Express doesn't directly support custom audiences (keeps wizard simple). Use Pro for retargeting campaigns.

Bulk Launch

Custom audience IDs per row (specific to platform).

Best practices

Tailor creative to funnel stage

• Cart abandoners: discount offer, urgency, "Still interested?" copy

• Past purchasers: cross-sell, loyalty program, new product

• Site visitors (no cart): re-introduce value prop, brand video, soft CTA

• Past lead-gen: webinar replay, case study, demo offer

Don't run the same creative to retargeting + prospecting — different intent stages need different copy.

Cap frequency

Add frequency cap (per platform's adset settings) to avoid over-exposure:

• Retargeting: 3-5 impressions per user per week

• Prospecting: 1-2 impressions per user per week

Set up exclusions early

When you build retargeting campaign, also define exclusion list (recent converters, current customers). Saves spend + improves user experience.

Refresh creatives more often

Retargeting audiences see ads more often (smaller pool). Creative fatigue hits faster:

• Refresh creative every 7-14 days for high-frequency retargeting

• Vs every 30-60 days for prospecting

Common mistakes

• Forgetting exclusions: serving ads to customers who already bought = wasted spend + annoyed users

• Too narrow window (e.g. 1 day): audience size too small to deliver effectively

• Wrong source: targeting PageView when you wanted AddToCart = much broader audience than intended

• No frequency cap: high CPMs + creative fatigue

• Generic creative: retargeting needs context-aware copy

Limits

• Custom audience minimum: 100 people (Meta), but quality < 1.000

• Max 500 audiences per Meta ad account

• Retention window cap: 180 days

• Custom audience refresh: continuous (auto-updates as new pixel events fire)

What you'll see

In Wevion Pro mode:

• Custom audience dropdown lists all accessible audiences

• Selected audiences show count next to name (e.g. "Cart abandoners 30d (12,345)")

• Audience size estimate updates with each include/exclude

• Frequency forecast (some platforms) shows expected user exposure

Common questions

• "How small is too small for retargeting?" < 1.000 people = high CPM + slow delivery. Wait until 5.000-10.000.

• "Can I retarget across platforms?" Pixel data is platform-specific. Meta retargeting uses Meta pixel. Google uses Google tag. To unify: use Postback or HubSpot for cross-platform CRM lists.

• "What about iOS 14.5 impact?" ATT opt-outs reduce pixel-based audience size by 20-30% on Meta. Add Conversions API for server-side recovery (meta-105).

• "Should I retarget past purchasers?" Yes for cross-sell / upsell / loyalty. Avoid same product offer to past 30-day purchasers (low ROI).

Related

• Audience targeting basics — base audience config

• Lookalike audiences — prospecting complement

• Set up Meta Pixels and Conversions API — pixel = retargeting foundation