# Adding or renewing the Dimona certificate

> Shyfter sends your Dimona declarations to the social security using an electronic certificate. Here is how to register it in Chaman, then finalise its activation with our teams.

Source: https://help.shyfter.com/en/dimona/adding-or-renewing-the-dimona-certificate  
Category: Dimona  
Updated: 2026-09-22

To send your Dimona declarations to the Belgian social security, Shyfter uses an **electronic certificate**. It is what secures the exchanges between Shyfter and the social security.

This certificate has a limited lifetime: it is **renewed every three years**. Shyfter anticipates that renewal for you and sends you the new certificate. On your side, all that remains is to register it in **Chaman**, the social security service for managing technical channels, then to finalise its activation with our teams.

## Before you start

Make sure you have:

- The **new certificate previously sent to you by Shyfter**.
- Access to the social security portal, authorised to **manage the technical channels** of your company.
- Your usual login method, for example **itsme**.

> **Renewing an existing certificate?** Keep the old certificate until the Shyfter technical team has checked the new one and confirmed that the Dimona exchanges work properly.

## 1. Log in to the social security portal

1. Go to [socialsecurity.be](https://www.socialsecurity.be).
2. In the **Belgium** column, click **Enterprise**.
3. Click **Log in**, at the top right.
4. Log in with your usual method. **itsme** is the simplest one.
5. Select **the company** for which you want to configure the Dimona exchanges.

## 2. Open Chaman

1. In the portal main menu, click **Online services**.
2. In the **Direct access** field, type **Chaman**, then click **Go**.
3. On the Chaman page, click **Manage your technical channels**.

You then reach the list of channels configured for your company.

## 3. Add a Webservice account

1. Go to the **Webservice channels** section.
2. Click **Add a Webservice account**.
3. In the window that opens, select **REST** in the **Type** field.
4. Give the account a recognisable name, for example **Shyfter Dimona**.

Other channels may already be configured for your company. You can ignore them: they are not part of this procedure.

## 4. Select both Dimona permissions

In the **secured permissions**, tick the following two permissions:

- **Perform Dimona declarations**
- **Consult the Dimona declaration**

Click **Validate** in the permissions window to confirm your selection.

> **About "Check In And Out @ Work"**: this permission relates to another service. Only tick it if that feature is part of your integration.

## 5. Add the new certificate

1. In **Certificate management**, select the **new Shyfter certificate that was sent to you**.
2. Enter a name for this certificate, for example **Shyfter certificate**.
3. Click **Validate** to save the account and its certificate.

The account then appears in the list of Webservice accounts.

## 6. Check the saved information

Open the account details with the **eye** icon.

First check that both **Dimona permissions** are properly selected, then review the certificate information:

- Its name and the associated file.
- The company concerned.
- The certificate provider.
- The **expiry date**, which must be the one of the new certificate.

## 7. Send the Client ID to Shyfter

In the account details, look for the **Client ID** field.

1. Copy **your account's Client ID**.
2. Send it to your **Customer Success Manager** at Shyfter.

Together with the certificate, this identifier is what allows Shyfter to communicate with the social security. Without it, the exchanges cannot be put into service.

## 8. Finalise with the Shyfter technical team

Registering the certificate in Chaman is not enough: the Shyfter technical team still has to put the new certificate into service in the integration, then check that the Dimona exchanges work properly.

> **Keep your old certificate during that check.** Wait for our teams to confirm before removing it. This verification is quick.

## What to remember for the renewal

Since the certificate is renewed every three years, you will go through this procedure again. The key points:

- Add the **new certificate** sent by Shyfter.
- Select **both Dimona permissions**.
- Send your **Client ID** to your Customer Success Manager.
- **Keep the old certificate** until the new one is validated by the technical team.

Any question about the procedure? Contact your Customer Success Manager or [open the chat](#chat).