---
title: Common Newsletter Email Unique IDs
description: Add the right Email User ID (EUID) macro for your email ad zone tag. Find macros for top platforms like Indie Email, Mailchimp, HubSpot, and more.
---

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December 16, 2025

# Common Newsletter Email Unique IDs

## Add the right Email User ID (EUID) macro for your email ad zone tag. Find macros for top platforms like Indie Email, Mailchimp, HubSpot, and more.

When serving email ads, you need to add the correct Email User ID (EUID) macro to your email ad zone tag. This macro is provided by your newsletter service or email platform.

Below are the macros for some of the most popular email platforms.

### **Most Popular**

**INDIE EMAIL**  
%25SUBSCRIBERID%25%25MESSAGEID%25%25UNIQUEID%25

**MAILCHIMP**  
\*|CAMPAIGN\_UID|\*-\*|UNIQID|\*

### **Other Platforms**

**ACTIVE CAMPAIGN**  
​%SUBSCRIBERID%%MESSAGEID%

**ADESTRA**  
$AMF\_UNIQUE$

**EMMA**  
\[\[\_\_member\_id\_\_\]\]\[\[\_\_mailing\_id\_\_\]\]

**HUBSPOT**  
there

**MAILPOET**  
\[subscriber:email\]\[date:d\]\[date:m\]\[date:y\]\[newsletter:number\]

**ORACLE ELOQUA**  
\<span class=eloquaemail\>EmailAddress\</span\>\<span class=CampaignId\>CampaignId\</span\>

**PARDOT**

**SAILTHROUGH**

**SENDGRID**  
-customer\_id--date--time--

**ZOHO**  
$\[EMAIL\]$\_$\[UD:ADBUTLER\_UNIQUE|AB\_UQ|AB\_UQ\]$

<https://47815976.hs-sites.com/serving-ads-to-your-email-platform-using-indie-ads-manager-indiegraf-help-center?hsLang=en><https://47815976.hs-sites.com/implementing-roadblocks-in-email-zones-indiegraf-help-center?hsLang=en>

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