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Trackly SMS supports dynamic placeholders in creatives for tracked links and personalization.

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Basic Usage

Use {{link1}}, {{link2}}, etc. for tracked links: 
Shop our sale: {{link1}}
When sent, this becomes a short tracking URL: 
Shop our sale: trk.ly/abc123
Include multiple links with different offers: 
🔥 Flash sale!

50% off clothing: {{link1}}
30% off electronics: {{link2}}
Free shipping on orders $50+: {{link3}}
Each link can be bound to a different offer in the creative settings. In the creative editor:
  1. Write your message with {{linkN}} placeholders
  2. In the “Offer Bindings” section, map each placeholder:
PlaceholderOffer
{{link1}}Summer Clothing Sale
{{link2}}Electronics Clearance
{{link3}}Free Shipping Promo
Tracked links provide:
  • Click counts
  • Click timestamps
  • Revenue attribution
  • Bot detection
See Link Tracking for details.

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URL Parameters

Offers can include URL parameters that pass through to the destination: 
Offer URL: https://store.com/sale?promo=summer24
Short link: trk.ly/abc123
Final redirect: https://store.com/sale?promo=summer24&click_id=xyz
Additional parameters (like click_id) are appended for attribution.

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Account-Level Templates

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Prepend Text

Text automatically added to the start of every message: 
Account prepend: "[BrandName] "
Creative: "Check out our sale: {{link1}}"
Final message: "[BrandName] Check out our sale: trk.ly/abc123"

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Append Text

Text automatically added to the end of every message: 
Account append: " Reply STOP to opt out"
Creative: "Flash sale! {{link1}}"
Final message: "Flash sale! trk.ly/abc123 Reply STOP to opt out"

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Configuring

Set prepend/append in Account Settings > Messaging.
Prepend and append text count toward your character limit. Factor this into creative length.

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SMS Segments

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Standard SMS

160 characters per segment. Messages exceeding this are split:
LengthSegments
1-1601
161-3062
307-4593
Multi-segment messages use ~7 characters per segment for concatenation headers, reducing effective capacity.

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Unicode Messages

Messages with emoji or special characters use Unicode encoding:
LengthSegments
1-701
71-1342
135-2013

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Character Counting

The creative editor shows:
  • Raw character count
  • Segment count after placeholders resolve
  • Account for link length (~20 characters each)

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Personalization

Advanced personalization features are coming soon. Currently, messages are the same for all recipients (except for unique tracking links).
Future support will include:
  • {{first_name}} - Contact’s first name
  • {{custom_field}} - Custom contact fields
  • Conditional content

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Best Practices

Too many links can confuse. Have one primary action and make it prominent.
Stick to standard ASCII when possible to avoid Unicode segment limits.

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Example Templates

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Sale Announcement

🔥 Flash Sale! 50% off everything for 24 hours only.

Shop now: {{link1}}

Reply STOP to opt out.

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New Arrival

Just dropped: New {{category}} collection.

Be the first to shop: {{link1}}

STOP to unsubscribe.

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Re-engagement

We miss you! Here's 20% off your next order.

Claim your discount: {{link1}}

Expires in 48 hours. Reply STOP to opt out.

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Next Steps

Link Tracking

How link tracking works

ML Selection

Automated creative selection