# POI (lat/long)

A POI (Point of Interest) file is a list of the GPS coordinates of locations where your ad campaign is being displayed.

### How do we find respondents?

We broadcast the questionnaires around these locations, starting with a radius of 100 meters around each POI. We target users connected to the Internet who have passed near these places. This is considered a **probable exposure**.

The ad recall question will help filter the respondents to retain the 250 ad recallers who meet our [quality protocol](/methodology/happydemics-respondents/respondents-quality.md).<br>

### When can I provide a POI list ?

Uploading a POI file is only possible if you use [OOH](https://support.happydemics.com/methodology/media-formats-and-targeting-strategies/media-channels-and-formats/ooh$) or [DOOH](https://support.happydemics.com/methodology/media-formats-and-targeting-strategies/media-channels-and-formats/dooh) media (outdoor ads displayed on the street or digital screens). Please upload your file **before answers collection starts.**&#x20;

{% hint style="warning" %}
This upload section is only available once the Brand Lift has been setup and submitted in the Overview page. You can still **edit this information up to 24 hours before answers collection.**
{% endhint %}

### How many POIs do I need for my Brand Lift ?

The minimum requirement is **10 POIs per measurement.**<br>

### How to upload the POI list ?

1. After submitting your Brand Lift, click on the **Exposure data tab**
2. **Download** the example file&#x20;
3. Fill it in with your campaign's **GPS coordinates of locations**
4. **Upload the POI list** - allowed formats are : **.csv or .xlsx**

{% hint style="danger" %}
**Please note that :**&#x20;

* The columns titles in the example file **should not be modified.**
* For .xlsx format : Latitude has to be in column A and Longitude has to be in column B and Lat/longs format have to be **dot separated** and not comma separated. Exemple : 48.870902 (and not 48,870902).&#x20;
* For .csv format (example file):Latitude Longitude are in the same column and Lat/longs have to be **separated with a comma**.&#x20;
  {% endhint %}

<figure><img src="/files/NbQSFf7Mu6AvNejxoTt2" alt=""><figcaption></figcaption></figure>

👋 If you don't find your answer, feel free to reach out to **<support@happydemics.com>** for further consideration !<br>

### 🚀 Related articles

* [When and why do we use exposure data?](/launch/exposure-data/when-and-why-do-we-use-exposure-data.md)
* [Can I run a Brand Lift without a pixel or data exposure ?](/launch/exposure-data/can-i-run-a-brand-lift-without-a-pixel-or-data-exposure.md)
* [Can I update or delete my Brand Lift ?](/feasibility/can-i-update-or-delete-my-brand-lift.md)


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