# AIS-subscription

You can enable or disable the subscription to AIS-positions for a vessel. 

1. Open the **Vessels** module in the Master Data section.
2. Open the vessel drawer 
3. If the vessel has an IMO-number, click on the ![](/files/vipbzsUppHhod5ogY1FJ) icon in the top right.

{% hint style="info" %}
A light grey icon indicates that the vessel has no IMO-number registered.\
A dark grey icon indicates that it is not subscribing to AIS-positions. \
A blue icon indicates that the vessel is subscribing to AIS-positions.
{% endhint %}

![](/files/-LvB0WJ3JyGxhCec9l3H)


---

# 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://docs.dataloy.com/release-7.13/voyage-management-system/step-by-step-guides/vessels/ais-subscription.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.