fix(part): partner space doc update

pages/partner-space/how-to/add-client.mdx

@@ -7,7 +7,7 @@ content:
   paragraph: This page explains how to add a client from the Partner Space.
 tags: partner-space 
 dates:
-  validation: 2024-12-03
+  validation: 2025-05-26
   posted: 2024-05-27
 categories:
   - partner-space
@@ -18,11 +18,32 @@ categories:
 - A Scaleway account logged into the [console](https://console.scaleway.com)
 - Scaleway Partner status
 
-1. Click **Go to Partner Space** in your Organization dashboard.
+## Adding a new client
+
+1. Click **Go to Partner Space** from your Organization dashboard.
 2. Click **Add client**.
-3. Complete the following steps: 
-    - Enter your client’s **company name**. 
-    - Enter your client’s **SIREN** number. 
-    - Enter the **client external identifier**. This refers to the customer ID in your internal tools. 
-    - Enter the **first name**, **last name**, **email address**, and **phone number** of a contact of your choice within the client company. Note that this person will receive an email inviting them to join the Organization that will be created. 
-4. Click **Add client** to confirm. The list of your clients displays.
+3. Add your client's company information: 
+  - Company name
+  - Client ID (ID associated with this client in your internal tools)
+  - Registration number (e.g., SIREN, CRN)
+4. Add the contact information: 
+  - First name
+  - Last name
+  - Email address
+  - Phone number 
+5. Click **Add client** 
+6. Choose whether you need access to your client's Organization: 
+  - Clicking **Get access** will add you as a Member in your client's Organization. Depending on your permissions on this Organization, you'll be able to manage or view their cloud resources. 
+  - Clicking **Decline** will not add you as a Member in your client's Organization. You'll still be able to track your client's consumption from the Partner Space. 
+Your client is now listed.
+
+## Accessing a client's Organization 
+
+<Message type="note">
+  This section only applies if you clicked **Get access** when adding a new client. 
+</Message>
+
+1. Click **Log in as an IAM Member** in the invitation email sent to your inbox. You'll need your client's Organization ID provided in the email. 
+2. Follow the login instructions on the Scaleway console. 
+
+Your client's Organization now appears in your Organization list. You can switch from one Organization to another by clicking the Organization name on the top navigation bar.