> For the complete documentation index, see [llms.txt](https://docs.flip.to/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flip.to/docs/integrations/booking-engines/vendors/synxis.md).

# SynXis

Adding Flip.to to your SynXis booking engine is done in two steps.

***

## Step 1: Whitelisting Flip.to

To whitelist Flip.to on SynXis:

* After you sign in to SynXis, click **Setup** → **Channels** → **BE Designer**
* Then click **Manage** → **Allow Domains**
* Click **Add Domain** and enter **https\://\*.flip.to** into the **Domain Field**
* Click **Save** at the top of the page to publish the change

***

## Step 2: Add the snippet

* Click **Setup** → **Channels** → **BE Designer**
* Go to **Manage** → **Manage Configuration** → **Edit Active Config** → **General** → **Tracking Hooks**
* Click the pencil icon to edit the **Head Tracking Hook**

Copy and paste the snippet below into the black field in the center of the page, then click **SAVE** at the top right.

```html
<script async src="https://integration.flip.to" crossorigin="anonymous"></script>
```

The same line goes on your website—see [Set up your website](/docs/integrations/websites/set-up-your-website.md).

***

## Configurations

<details>

<summary>Overriding what Flip.to detects (rarely needed)</summary>

For a custom booking-engine domain, or a page whose language markup is wrong or missing. See [Overrides](/docs/integrations/booking-engines/set-up-your-booking-engine.md#overrides) on Set up your booking engine.

</details>

<details>

<summary>Tracking add-ons and other products</summary>

If you sell experiences, events or ancillary items at time of booking, those still need to be passed to Flip.to—see [E-commerce tracking](/docs/integrations/booking-engines/e-commerce-tracking.md).

</details>

***

If we can be of any help, say hello to our [Customer Success team](/docs/support/customer-success.md).


---

# 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.flip.to/docs/integrations/booking-engines/vendors/synxis.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.