> For the complete documentation index, see [llms.txt](https://docs.hackle.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hackle.io/en/getting-started/compare-and-faq.md).

# FAQ

Find answers to frequently asked questions for each Hackle service.

### What kinds of companies use Hackle?

A wide range of companies use Hackle, including Olive Young, Hyundai Card, Kakao Pay Securities, Lina Life, and Shinhan Life.

***

### Can I manage multiple products under one account?

A single email account can be used across multiple Workspaces.

***

### Can I manage different domains in one Workspace?

Yes. If user flows are connected, consider consolidating them. If the products and audiences differ, we recommend separating them.

***

### Can services built with no-code tools use Hackle?

Yes. If the tool has an HTML or script editing feature, you can insert the data collection script.

***

### Can data still be collected without ATT consent?

Yes. Hackle is first-party data-based, so data can be collected regardless of whether ATT consent has been obtained.

***

### How is billing usage and traffic measured?

Usage is measured by Exposure events and behavior events. Experiments that are in draft or completed status are excluded from billing.

***

<table data-view="cards"><thead><tr><th>Service</th><th data-card-target data-type="content-ref">FAQ</th></tr></thead><tbody><tr><td><strong>A/B Test</strong><br>Experiment design, operation, and result interpretation</td><td><a href="/en/ab-test/a-b-faq.md">A/B Test FAQ</a></td></tr><tr><td><strong>Data Analytics</strong><br>Funnels, retention, and event aggregation</td><td><a href="/en/data/faq.md">Data Analytics FAQ</a></td></tr><tr><td><strong>CRM Campaign</strong><br>In-App Messages, Push, and Kakao Messages</td><td><a href="/en/crm-marketing/crm-faq.md">CRM Campaign FAQ</a></td></tr><tr><td><strong>Connected Content</strong><br>Message personalization based on external APIs</td><td><a href="/en/crm-marketing/message-personalization/connected-content-faq.md">Connected Content FAQ</a></td></tr><tr><td><strong>MCP</strong><br>MCP and AI feature integration</td><td><a href="/en/ai/model-context-protocol/mcp-qa.md">MCP FAQ</a></td></tr><tr><td><strong>Developer Guide</strong><br>SDK integration and development environment troubleshooting</td><td><a href="/en/development-guide/faq.md">Developer Guide FAQ</a></td></tr><tr><td><strong>Cafe24 Integration</strong><br>Cafe24 service integration and usage</td><td><a href="/en/cafe-24/cafe24-faq.md">Cafe24 FAQ</a></td></tr></tbody></table>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.hackle.io/en/getting-started/compare-and-faq.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.