diff --git a/configuration/build-configuration.json b/configuration/build-configuration.json
deleted file mode 100644
index c06fb883..00000000
--- a/configuration/build-configuration.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "authenticationType": "${AUTHENTICATION_TYPE}",
-  "_authenticationType_comment_": "Authentication type : OIDC or NONE",
-  "apiUrl": "${API_URL}",
-  "portail": "${PORTAIL_URL}"
-}
diff --git a/configuration/configuration.json b/configuration/configuration.json
index c06fb883..9bce8478 100644
--- a/configuration/configuration.json
+++ b/configuration/configuration.json
@@ -2,5 +2,6 @@
   "authenticationType": "${AUTHENTICATION_TYPE}",
   "_authenticationType_comment_": "Authentication type : OIDC or NONE",
   "apiUrl": "${API_URL}",
-  "portail": "${PORTAIL_URL}"
+  "portail": "${PORTAIL_URL}",
+  "identityProvider": "${IDENTITY_PROVIDER}"
 }
diff --git a/configuration/oidc.json b/configuration/oidc.json
deleted file mode 100644
index 8e79c004..00000000
--- a/configuration/oidc.json
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-  "origin": "my_origin",
-  "isEnabled": true,
-  "config": {
-    "authority": " ${AUTHORITY}",
-    "client_id": "${CLIENT_ID}",
-    "redirect_uri": "my_origin/authentication/callback",
-    "response_type": "code",
-    "post_logout_redirect_uri": "my_origin/",
-    "scope": "openid profile email",
-    "silent_redirect_uri": "my_origin/authentication/silent_callback",
-    "automaticSilentRenew": true,
-    "loadUserInfo": true
-  }
-}
diff --git a/package.json b/package.json
index e01af2fc..71142532 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "stromae",
-  "version": "2.2.14",
+  "version": "2.3.1",
   "description": "Web application for the management of questionnaires powered by Lunatic",
   "repository": {
     "type": "git",
diff --git a/public/build-configuration.json b/public/build-configuration.json
deleted file mode 100644
index c06fb883..00000000
--- a/public/build-configuration.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-  "authenticationType": "${AUTHENTICATION_TYPE}",
-  "_authenticationType_comment_": "Authentication type : OIDC or NONE",
-  "apiUrl": "${API_URL}",
-  "portail": "${PORTAIL_URL}"
-}
diff --git a/public/configuration.json b/public/configuration.json
index c06fb883..3daba3af 100644
--- a/public/configuration.json
+++ b/public/configuration.json
@@ -1,6 +1,7 @@
 {
-  "authenticationType": "${AUTHENTICATION_TYPE}",
+  "authenticationType": "NONE",
   "_authenticationType_comment_": "Authentication type : OIDC or NONE",
   "apiUrl": "${API_URL}",
-  "portail": "${PORTAIL_URL}"
+  "portail": "${PORTAIL_URL}",
+  "identityProvider": "${IDENTITY_PROVIDER}"
 }
diff --git a/scripts/.env b/scripts/.env
index a3505631..d2270316 100644
--- a/scripts/.env
+++ b/scripts/.env
@@ -1,5 +1,7 @@
 AUTHENTICATION_TYPE=NONE
 API_URL=https://stromae-bo.dev.insee.io
 PORTAIL_URL=
+REALM=
 AUTHORITY=
-CLIENT_ID=
\ No newline at end of file
+CLIENT_ID=
+IDENTITY_PROVIDER=
\ No newline at end of file
diff --git a/scripts/env.sh b/scripts/env.sh
index 8cd7cd6e..49b14c01 100644
--- a/scripts/env.sh
+++ b/scripts/env.sh
@@ -19,10 +19,6 @@ do
   
 done < .env
 envsubst < "./configuration.json" > "configuration.temp"
-envsubst < "./build-configuration.json" > "build-configuration.temp"
-envsubst < "./build-oidc.json" > "build-oidc.temp"
-envsubst < "./oidc.json" > "oidc.temp"
+envsubst < "./keycloak.json" > "keycloak.temp"
 mv configuration.temp configuration.json
-mv build-configuration.temp build-configuration.json
-mv build-oidc.temp build-oidc.json
-mv oidc.temp oidc.json
+mv keycloak.temp keycloak.json
diff --git a/src/App.js b/src/App.js
index 6d413cfb..a639263f 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,10 +1,10 @@
-import React, { useEffect, useState } from 'react';
-import { BrowserRouter } from 'react-router-dom';
-import { ErrorBoundary } from 'react-error-boundary';
 import { AuthProvider } from 'components/auth';
 import { Router } from 'components/router';
-import { StyleProvider } from 'components/style';
 import { ErrorFallback } from 'components/shared/error';
+import { StyleProvider } from 'components/style';
+import React, { useEffect, useState } from 'react';
+import { ErrorBoundary } from 'react-error-boundary';
+import { BrowserRouter } from 'react-router-dom';
 import { getConfiguration } from 'utils/configuration';
 import './App.css';
 
@@ -30,10 +30,7 @@ const App = () => {
       >
         {configuration && (
           <AppContext.Provider value={configuration}>
-            <AuthProvider
-              authType={configuration.authenticationType}
-              urlPortail={configuration.portail}
-            >
+            <AuthProvider>
               <BrowserRouter>
                 <Router />
               </BrowserRouter>
diff --git a/src/components/auth/provider/component.js b/src/components/auth/provider/component.js
index a4a5d309..ab43cc5a 100644
--- a/src/components/auth/provider/component.js
+++ b/src/components/auth/provider/component.js
@@ -1,14 +1,21 @@
-import React, { useEffect, useState } from 'react';
-import { OIDC, NONE } from 'utils/constants';
+import { AppContext } from 'App';
 import { LoaderSimple } from 'components/shared/loader';
-import { getOidc } from 'utils/configuration';
 import { errorDictionary } from 'i18n';
-import { createKeycloakOidcClient } from 'utils/keycloak';
+import React, { useContext, useEffect, useState } from 'react';
+import { getOidc } from 'utils/configuration';
+import { NONE, OIDC } from 'utils/constants';
 import { listenActivity } from 'utils/events';
+import { createKeycloakOidcClient } from 'utils/keycloak';
 
 export const AuthContext = React.createContext();
 
-const AuthProvider = ({ authType, urlPortail, children }) => {
+const AuthProvider = ({ children }) => {
+  const {
+    authenticationType: authType,
+    portail: urlPortail,
+    identityProvider,
+  } = useContext(AppContext);
+
   const [oidcClient, setOidcClient] = useState(() => {
     switch (authType) {
       case OIDC:
@@ -32,13 +39,14 @@ const AuthProvider = ({ authType, urlPortail, children }) => {
         url: oidcConf['auth-server-url'],
         realm: oidcConf['realm'],
         clientId: oidcConf['resource'],
+        identityProvider: identityProvider,
         urlPortail,
         evtUserActivity: listenActivity,
       });
 
       setOidcClient(oidcClient);
     })();
-  }, [authType, urlPortail]);
+  }, [authType, identityProvider, urlPortail]);
 
   if (oidcClient === null) return <LoaderSimple />;
 
diff --git a/src/utils/configuration/get-configuration.js b/src/utils/configuration/get-configuration.js
index 2df6b5e5..94155d42 100644
--- a/src/utils/configuration/get-configuration.js
+++ b/src/utils/configuration/get-configuration.js
@@ -2,8 +2,7 @@ import { getEnvVar } from './env';
 
 const basePath = `${window.location.origin}`;
 
-const nameConfigFile =
-  getEnvVar('NAME_CONFIG_FILE') ?? 'build-configuration.json';
+const nameConfigFile = getEnvVar('NAME_CONFIG_FILE') ?? 'configuration.json';
 
 const nameOidcFile = getEnvVar('NAME_OIDC_FILE') ?? 'keycloak.json';
 
diff --git a/src/utils/keycloak/keycloakOidcClient.js b/src/utils/keycloak/keycloakOidcClient.js
index 3bdad0f5..07d9d85e 100644
--- a/src/utils/keycloak/keycloakOidcClient.js
+++ b/src/utils/keycloak/keycloakOidcClient.js
@@ -1,4 +1,5 @@
 import Keycloak from 'keycloak-js';
+import { READ_ONLY } from 'utils/constants';
 
 const getCurrentSurvey = (path) => {
   const temp = path.split('/questionnaire/');
@@ -13,6 +14,7 @@ export const createKeycloakOidcClient = async ({
   url,
   realm,
   clientId,
+  identityProvider,
   urlPortail,
   evtUserActivity,
 }) => {
@@ -27,7 +29,13 @@ export const createKeycloakOidcClient = async ({
     .catch((error) => error);
 
   const login = async () => {
-    await keycloakInstance.login({ redirectUri: window.location.href });
+    await keycloakInstance.login({
+      redirectUri: window.location.href,
+      // Readonly mode : Internal user login
+      idpHint: window.location.pathname.startsWith(`/${READ_ONLY}`)
+        ? identityProvider
+        : null,
+    });
     return new Promise(() => {});
   };
 
diff --git a/src/utils/oidc/build-configuration.js b/src/utils/oidc/build-configuration.js
deleted file mode 100644
index 739ec7b6..00000000
--- a/src/utils/oidc/build-configuration.js
+++ /dev/null
@@ -1,36 +0,0 @@
-const LAST_SURVEY = 'last-survey';
-
-const getCurrentSurvey = (path) => {
-  if (!path.startsWith('/authentication')) {
-    const temp = path.split('/questionnaire/');
-    if (temp.length > 1) {
-      const idQ = temp[1].slice(0, temp[1].indexOf('/'));
-      const survey = idQ.substr(0, idQ.indexOf('2')).toLowerCase();
-      window.localStorage.setItem(LAST_SURVEY, survey);
-      return survey;
-    }
-    return '';
-  }
-  return window.localStorage.getItem(LAST_SURVEY) || '';
-};
-
-const getKc_idp_hintActive = (path) => {
-  if (!path.startsWith('/read-only')) {
-    return '';
-  }
-  return '{"kc_idp_hint":"sso-insee"}';
-};
-
-export const buildOidcConfiguration = ({ oidcConf, conf }) => {
-  const { origin, pathname } = window.location;
-  const { portail } = conf;
-  const config = {
-    ...oidcConf,
-    redirect_uri: `${origin}/authentication/callback`,
-    response_type: 'code',
-    post_logout_redirect_uri: `${portail}/${getCurrentSurvey(pathname)}`,
-    silent_redirect_uri: `${origin}/authentication/silent_callback`,
-    extraQueryParams: `${getKc_idp_hintActive(pathname)}`,
-  };
-  return config;
-};