---
title: "Liquid Tags"
slug: "liquid-tags"
description: "Covers Liquid Tags in Insider One, including syntax, variables, filters, conditions, loops, default values, and use cases for dynamic campaign personalization."
status: "new"
updated: 2026-07-27T07:08:59Z
published: 2026-07-27T07:09:21Z
canonical: "academy.insiderone.com/liquid-tags"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://academy.insiderone.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Liquid Tags

Liquid is a templating language created by Shopify. It acts as a bridge between static content and dynamic data. Liquid is made of three building blocks: **objects** (output values), **tags** (logic), and **filters** (transform values).

> [!NOTE]
> Liquid is available for **early access**. The early access products include the standalone [App Push](https://academy.insiderone.com/docs/app-push), [Enhanced Templates](https://academy.insiderone.com/docs/enhanced-mobile-app-templates), [Web Templates](/v1/docs/web-suite-overview), [Email](https://academy.insiderone.com/docs/email-channel) channels, [Transactional Email API v2](/v1/docs/transactional-emails), and [Enhanced Templates](https://academy.insiderone.com/docs/enhanced-mobile-app-templates) and [Email](https://academy.insiderone.com/docs/architect-email) in Architect journeys. To be a part of the early access, contact the Insider One Team.

| Building block | Syntax | Purpose |
| --- | --- | --- |
| Object | {{ }} | Outputs the value of the variables |
| Tag | {% %} | Logic and control flow if, for, assign, etc. |
| Filter | \| | Transforms a value before output; upcase, round, time_format, etc. |

You can apply **multiple filters** in a row. Each filter takes the output of the previous one as its input.

```plaintext
{{ price | times: 100 | round }}
```

1. Start with price → value is 9.764 2. times: 100 → multiplies it → 976.4 3. round → rounds it → 976

Filters are applied sequentially. Each one takes the preceding filter's output as its own input, forming a transformation pipeline **from left to right**.

Liquid supports whitespace control via hyphen modifiers (-) placed inside delimiters. When applied, all whitespace characters, including spaces and newlines, immediately preceding or following the delimiter are removed from the rendered output.

```plaintext
{%- if condition -%}
  ...
{%- endif -%}
{{- name -}}
```

```plaintext
A{%- if true -%}B{%- endif -%}C
→  ABC
```

Liquid Tags offer the following components:

- [Variables](https://academy.insiderone.com/docs/liquid-tags-variables): Learn how to reference user attributes from Insider One’s Unified Customer Database in your templates, and how to handle cases where a variable has no value.
- [Filters](https://academy.insiderone.com/docs/liquid-tags-filters): Find the full list of filters available for transforming **strings**, **numbers**, **arrays**, and **dates**, including Insider-specific filters like number_format and time_format.
- [Operators](https://academy.insiderone.com/docs/liquid-tags-operators): See all comparison and logical operators supported in Liquid conditions, and learn how to handle grouping when parentheses are not available.
- [Tags](https://academy.insiderone.com/docs/liquid-tags-tags): Explore all available tags for control flow, loops, and variable assignment, with syntax references and examples for each.
- [Default Values](https://academy.insiderone.com/docs/liquid-tags-default-values): Learn how the default filter works, which values trigger it, and when to use it versus an explicit condition.
- [Conditional Logic](https://academy.insiderone.com/docs/liquid-tags-conditional-logic): Find guidance on writing conditions with {% if %}, {% elsif %}, and {% unless %}, including how truthy and falsy values behave in Liquid.
- [Aborting Messages](https://academy.insiderone.com/docs/liquid-tags-aborting-messages): Learn how to use {% abort_message %} to prevent a message from being sent when required data is missing or a user doesn’t meet the campaign criteria.
- [Chaining Filters](https://academy.insiderone.com/docs/liquid-tags-chaining-filters): See how to apply multiple filters in sequence and explore common chaining patterns for formatting, calculation, and array manipulation.
- [Use Cases:](https://academy.insiderone.com/docs/liquid-tags-use-cases) Find ready-to-use template examples covering personalization, loyalty tiers, birthday messages, SMS formatting, dynamic subject lines, and more.
- [FAQ](https://academy.insiderone.com/docs/liquid-tags-faq): Get answers to common questions about Liquid behavior, including edge cases around blank values, type comparisons, date parsing, and abort logic.