# External navigation (Virtual event)

It is also possible to provide references for external navigation links in order to make it possible to recognise a user in external/own software.

This can be done by adding the variables`lgd_user_id` or `lgd_user_code` in the url parameters.

The software then automatically replaces these values with the corresponding values of the user. These values correspond to the values known in the [API](https://docs.letsgetdigital.com/).

The table below shows the variable as it can be used in the link and what value it corresponds to from the API.

| Variable in URL | API endpoint | Endpoint field |
| --------------- | ------------ | -------------- |
| `lgd_user_id`   | User         | `id`           |
| `lgd_user_code` | User         | `code`         |

### Examples

Add the following link to the navigation items: \
`https://www.letsgetdigital.com?your_id=lgd_user_id&your_code=lgd_user_code`

If a user with id `27` and code `TESTINGCODE123` will click on the link, the following link will be opened:\
`https://www.letsgetdigital.com?your_id=27&your_code=d5f3ef4396e64221092ec573dfe35b`

{% hint style="info" %}
The `lgd_user_code`is sent as an md5 hash of the `customer_id` and `code` field with an indent in between: 

```
md5(customer_id-code)
```

{% endhint %}


---

# Agent Instructions: 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:

```
GET https://knowledge-base.letsgetdigital.com/the-admin-panel/navigation/virtual-platform/external-navigation.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.