> For the complete documentation index, see [llms.txt](https://www.analytics-docs.laplacetec.com/guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.analytics-docs.laplacetec.com/guide/en/startguide/connect/ad/criteo.md).
# Connecting Criteo
This guide walks you through connecting your Criteo Marketing Solutions account to Laplace.
### Before you start
To connect Criteo data to Laplace, you need:
* A Criteo Marketing Solutions account (advertiser permissions)
* At least 1 advertiser registered to that account
* A Laplace account
> You don't need to issue a Criteo API key (client\_id / client\_secret) yourself. Laplace handles it with OAuth authentication through its registered official app.
***
### Step 1. Start the Criteo connection in Laplace
1. Sign in to Laplace and click **Data Connect** in the left rail.
2. Enter Criteo in **Search connectors** in the navigation panel, or click **Criteo Connect** in the **Ad channels** category.
{% hint style="info" %}
If you haven't connected an account yet, the connector screen shows **What you can analyze once connected**. Click **View sample** to preview the screens you'll see after connecting, using sample data. Also check **How to connect** and **Before you start** at the bottom of the screen for the connection steps and what to prepare.
{% endhint %}
3. Click **Data Connect** at the right of the **Criteo Connect** screen header, then click **Connect with Criteo** under **Connection Info** in the connection window.
> A new tab opens and takes you to the Criteo authentication page ([consent.criteo.com](http://consent.criteo.com)).
***
### Step 2. Authenticate your Criteo account and grant permissions
1. On the Criteo login screen, sign in with your advertiser account.
2. Check the ad accounts you want to connect and click 'Approve'.
***
### Step 3. Confirm the connection
* Laplace automatically loads the list of registered advertisers and creates them as data sources.
* Return to Laplace. When the ad accounts appear in the **Data source** tab of the connection window, select the ad accounts to collect and click **Data Connect**. \* The first data collection is triggered automatically right after registration, and after that data is refreshed on a regular schedule. You can track progress in **Jobs & data status** at the right of the top bar, and we'll also email you when the sync is complete.
* Connected accounts appear in the connection table on the connector screen. From ⋯ (**More actions**) at the right of a row, you can **Refresh** and **Renew Authentication**.
***
### FAQ
#### Q. Where do I get a client\_id / client\_secret?
You don't issue them yourself. Laplace handles this automatically, so sellers only need to complete Criteo's consent process.
#### Q. What happens when authentication expires?
Laplace refreshes the token automatically. If the refresh fails, a **Renew Authentication** notice appears on screen, and you can re-authenticate with the same steps.
#### Q. What if there are multiple advertisers?
The first advertiser's ID is used as the connection key, and ad accounts you've been granted access to are registered automatically.
#### Q. An ad account shows Not Authorized
You need to ask the party that manages the ad account (the agency) for permission.
Criteo is a platform where ads are managed by agencies. Most advertisers view their ads through a sub-account, so that account doesn't have permission to connect the ad account.
#### Q. I get a "No Criteo advertisers found" error
This happens when no advertiser is registered to the Criteo account. Register an advertiser with Criteo, then try again.
***
## Ask your dedicated manager
Having trouble connecting Criteo?
Contact us through the inquiry page below. Your account manager will be happy to help.
> 💬 [Contact us on our website](https://www.analytics.laplacetec.com/contact)
**Email:** [**product@laplacetec.com**](mailto:product@laplacetec.com)