Most email teams only track standard metrics like opens and clicks. But the real insights come when you combine those results with context.

In this guide, you’ll learn how to capture any data from your email, like template variables or customer attributes, and store it in your Send Log in Salesforce Marketing Cloud.

Once this data is available in your Send Log, it will automatically become available in SEINō, so you can use it in your dashboards, comparisons and analyses without any extra work.

This allows you to enrich your reporting and better understand what’s driving your campaign performance.

📊 Example use-case: Log Webversion, Subject Line & Language in Send Log

What we’re capturing

We want to store:

• Webversion link
• Subject line
• Customer field: Language

Step 1 — Create fields in your Send Log Data Extension

Add these fields:

WebversionURL (Text)
SubjectLine (Text)
Language (Text)

Step 2 — Add this AMPscript to your email

Place this at the top of your email:

%%[
/* Webversion link */
SET @WebversionURL = ViewEmailURL()

/* Subject line */
SET @SubjectLine = AttributeValue("_emailSubject")

/* Customer language field */
SET @Language = AttributeValue("Language")
]%%

Step 3 — Make sure names match exactly

What gets stored

At send time, your Send Log will contain:

WebversionURL = https://view.email.sfmc.com/?qs=...
SubjectLine   = Summer Sale - 20% off
Language      = EN

Important notes

1. Subject line works only if:

• You set it in the email (or send definition)
• _emailSubject is available (usually is)

If not working, fallback:

SET @SubjectLine = "Fallback subject here"

2. Language must exist in your data

This must be a field in:

• Sendable Data Extension

or

• Contact Builder attribute

3. Webversion link

ViewEmailURL() always generates the correct per-recipient URL.

💡 SEINō tip

If you log these fields, you can:

• Compare subject lines across campaigns
• Analyze performance by language
• See previews of your emails

✅ Done

That’s it.

If the field exists + AMPscript variable matches → it will be logged automatically.

Updated on: 16/04/2026