Alia integrates directly with Postscript’s Onsite Opt-In (OOI) to create a faster, higher-converting SMS signup experience — without sending shoppers off-site or requiring them to send a text message.
Instead of submitting a phone number and replying “Y” via SMS, shoppers now receive a 4-digit code directly inside the popup. With a single tap, they’re opted in.
The result:
No keyword replies
No off-site friction
No compliance tradeoffs
Up to 3× more SMS subscribers
Part 1: Setting Up the Integration
Initial Setup
At this time, setting up Postscript Onsite Opt-In from scratch requires assistance from the Alia team.
To get started, please:
Contact your CSM, or
Reach out via Live Chat Support
An internal Alia team member will complete the initial configuration to ensure:
Correct Postscript account linkage
Proper Onsite Opt-In source setup
Full compliance with SMS regulations
Once this setup is complete, everything else can be managed directly within Alia and Postscript.
Part 2: How Onsite Opt-In Works After Setup
Once OOI is enabled, there are a few important workflow changes to understand.
1. Keywords Are No Longer Used
With Onsite Opt-In, keywords are completely removed from the opt-in process.
Instead, subscribers are attributed in Postscript under a new source: Third-Party Onsite Opt-In
This means:
No “Reply Y” logic
No keyword-triggered opt-ins
No keyword-based segmentation for Alia popups
2. Update Your Postscript Flows
If you currently use keyword-based filters to trigger Welcome Series or automation flows for Alia popups, those filters must be updated.
Postscript recommends switching from keyword logic to a subscriber custom property.
What Needs to Change
Anywhere you are using:
Keyword most recently triggered
Any Reply-Y–specific logic tied to Alia
You must replace it with a subscriber custom field filter.
How to Update Your Flows
Follow these steps for each Welcome Series or Automation Flow tied to Alia popups:
Open your Welcome Series (or connected Automation Flow) in Postscript
Locate the trigger filters or entry conditions using:
Keyword most recently triggered
Remove the legacy keyword filter
Add a new Subscriber Filter:
Subscriber Filter → Custom Field
Field:
alia_ooiCondition:
equalsValue:
true
Save your updates
Important:
If these filters are not updated, some flows may stop triggering correctly or send subscribers into the wrong Welcome path.
3. Welcome Message Is Now Set in Alia
With Onsite Opt-In, the initial welcome message is no longer sent via keyword automation.
Instead, it is configured directly inside Alia.
Where to Set It
Open your popup in the Alia Popup Editor
Click on any SMS submit button
Once OOI is enabled, you’ll see a field to set your Welcome Text
This message:
Is required for OOI to function
Can include Alia-generated unique discount codes
Can exactly mirror your existing Postscript welcome message copy
4. Message Analytics
Analytics for the OOI welcome message live inside Postscript:
Postscript → Data & Insights → Messages → Message Analytics
Here you can track:
Sends
Deliverability
Engagement
Revenue attribution
Part 3: Editing Your Popup with Onsite Opt-In
Onsite Opt-In introduces strict compliance requirements that must be followed for your popup to be approved and published.
Required Compliance Rules
To remain fully compliant, all of the following must be true:
✅ The compliance text must use Alia’s default consent variable:
sms_consent
✅ The compliance text must appear above the SMS submit button
✅ The compliance text color must sufficiently contrast with the popup background
✅ Terms of Service and Privacy Policy links must:
Be bolded
Be UPPERCASE
Use a color that clearly contrasts with the surrounding compliance text
Editing Compliance Styling
All compliance styling can be adjusted directly inside the Alia Popup Editor, including:
Consent text placement
Font size and color
Link styling for Terms & Privacy
These controls are available at the element level, so no custom code is required.
Final Review & Publishing
Once your popup meets all requirements:
Click Mark as Ready
The popup will be reviewed for compliance
After approval, it can be published successfully
Summary
Postscript Onsite Opt-In with Alia delivers:
A faster, frictionless SMS opt-in experience
Higher conversion rates (up to 3× more subscribers)
No off-site steps or keyword replies
Full compliance when configured correctly
If you’re ready to get started or need help updating your flows, reach out to your Alia CSM or Live Chat Support and we’ll take it from there.