diff --git a/angular.json b/angular.json
index 4a8e92bd5..b02163de4 100644
--- a/angular.json
+++ b/angular.json
@@ -27,8 +27,13 @@
         "lint": {
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
-            "tsConfig": ["libs/ui/tsconfig.lib.json", "libs/ui/tsconfig.spec.json"],
-            "exclude": ["**/node_modules/**"]
+            "tsConfig": [
+              "libs/ui/tsconfig.lib.json",
+              "libs/ui/tsconfig.spec.json"
+            ],
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
         }
       }
@@ -48,8 +53,15 @@
             "main": "apps/sales/src/main.ts",
             "polyfills": "apps/sales/src/polyfills.ts",
             "tsConfig": "apps/sales/tsconfig.app.json",
-            "assets": ["apps/sales/src/favicon.ico", "apps/sales/src/assets", "apps/sales/src/manifest.webmanifest"],
-            "styles": ["apps/sales/src/styles.scss"],
+            "assets": [
+              "apps/sales/src/favicon.ico",
+              "apps/sales/src/assets",
+              "apps/sales/src/manifest.webmanifest",
+              "apps/sales/src/silent-refresh.html"
+            ],
+            "styles": [
+              "apps/sales/src/styles.scss"
+            ],
             "scripts": []
           },
           "configurations": {
@@ -132,16 +144,27 @@
             "polyfills": "apps/sales/src/polyfills.ts",
             "tsConfig": "apps/sales/tsconfig.spec.json",
             "karmaConfig": "apps/sales/karma.conf.js",
-            "styles": ["apps/sales/src/styles.scss"],
+            "styles": [
+              "apps/sales/src/styles.scss"
+            ],
             "scripts": [],
-            "assets": ["apps/sales/src/favicon.ico", "apps/sales/src/assets", "apps/sales/src/manifest.webmanifest"]
+            "assets": [
+              "apps/sales/src/favicon.ico",
+              "apps/sales/src/assets",
+              "apps/sales/src/manifest.webmanifest"
+            ]
           }
         },
         "lint": {
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
-            "tsConfig": ["apps/sales/tsconfig.app.json", "apps/sales/tsconfig.spec.json"],
-            "exclude": ["**/node_modules/**"]
+            "tsConfig": [
+              "apps/sales/tsconfig.app.json",
+              "apps/sales/tsconfig.spec.json"
+            ],
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
         }
       }
@@ -170,7 +193,9 @@
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
             "tsConfig": "apps/sales-e2e/tsconfig.e2e.json",
-            "exclude": ["**/node_modules/**"]
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
         }
       }
@@ -199,8 +224,13 @@
         "lint": {
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
-            "tsConfig": ["libs/swagger/tsconfig.lib.json", "libs/swagger/tsconfig.spec.json"],
-            "exclude": ["**/node_modules/**"]
+            "tsConfig": [
+              "libs/swagger/tsconfig.lib.json",
+              "libs/swagger/tsconfig.spec.json"
+            ],
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
         }
       }
@@ -229,8 +259,13 @@
         "lint": {
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
-            "tsConfig": ["libs/mock/tsconfig.lib.json", "libs/mock/tsconfig.spec.json"],
-            "exclude": ["**/node_modules/**"]
+            "tsConfig": [
+              "libs/mock/tsconfig.lib.json",
+              "libs/mock/tsconfig.spec.json"
+            ],
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
         }
       }
@@ -259,8 +294,13 @@
         "lint": {
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
-            "tsConfig": ["libs/shared/tsconfig.lib.json", "libs/shared/tsconfig.spec.json"],
-            "exclude": ["**/node_modules/**"]
+            "tsConfig": [
+              "libs/shared/tsconfig.lib.json",
+              "libs/shared/tsconfig.spec.json"
+            ],
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
         }
       }
@@ -289,12 +329,17 @@
         "lint": {
           "builder": "@angular-devkit/build-angular:tslint",
           "options": {
-            "tsConfig": ["libs/sso/tsconfig.lib.json", "libs/sso/tsconfig.spec.json"],
-            "exclude": ["**/node_modules/**"]
+            "tsConfig": [
+              "libs/sso/tsconfig.lib.json",
+              "libs/sso/tsconfig.spec.json"
+            ],
+            "exclude": [
+              "**/node_modules/**"
+            ]
           }
         }
       }
     }
   },
   "defaultProject": "sales"
-}
+}
\ No newline at end of file
diff --git a/apps/sales/src/silent-refresh.html b/apps/sales/src/silent-refresh.html
new file mode 100644
index 000000000..c0ebb5423
--- /dev/null
+++ b/apps/sales/src/silent-refresh.html
@@ -0,0 +1,9 @@
+
+<html>
+<body>
+    <script>
+    parent.postMessage(location.hash, location.origin);
+    </script>
+</body>
+</html>
+
diff --git a/libs/sso/src/lib/configuration/oauth-prod.config.ts b/libs/sso/src/lib/configuration/oauth-prod.config.ts
index d0c3e7494..78f26cec1 100755
--- a/libs/sso/src/lib/configuration/oauth-prod.config.ts
+++ b/libs/sso/src/lib/configuration/oauth-prod.config.ts
@@ -14,9 +14,12 @@ export const authConfig: AuthConfig = {
 
   oidc: true,
 
+  // URL of the SPA to redirect the user after silent refresh
+  silentRefreshRedirectUri: window.location.origin + '/silent-refresh.html',
+
   // set the scope for the permissions the client should request
   // The first three are defined by OIDC. The 4th is a usecase-specific one
   scope:
     // tslint:disable-next-line: max-line-length
-    'openid profile cmf_user isa-isa-webapi isa-checkout-webapi isa-cat-webapi isa-ava-webapi isa-crm-webapi isa-review-webapi isa-kpi-webapi isa-oms-webapi isa-nbo-webapi isa-print-webapi eis-service'
+    'openid profile cmf_user isa-isa-webapi isa-checkout-webapi isa-cat-webapi isa-ava-webapi isa-crm-webapi isa-review-webapi isa-kpi-webapi isa-oms-webapi isa-nbo-webapi isa-print-webapi eis-service isa-inv-webapi'
 };
diff --git a/libs/sso/src/lib/configuration/oauth.config.ts b/libs/sso/src/lib/configuration/oauth.config.ts
index 0cf00e94c..4f1f38ebc 100755
--- a/libs/sso/src/lib/configuration/oauth.config.ts
+++ b/libs/sso/src/lib/configuration/oauth.config.ts
@@ -14,9 +14,12 @@ export const authConfig: AuthConfig = {
 
   oidc: true,
 
+  // URL of the SPA to redirect the user after silent refresh
+  silentRefreshRedirectUri: window.location.origin + '/silent-refresh.html',
+
   // set the scope for the permissions the client should request
   // The first three are defined by OIDC. The 4th is a usecase-specific one
   scope:
     // tslint:disable-next-line: max-line-length
-    'openid profile cmf_user isa-isa-webapi isa-checkout-webapi isa-cat-webapi isa-ava-webapi isa-crm-webapi isa-review-webapi isa-kpi-webapi isa-oms-webapi isa-nbo-webapi isa-print-webapi eis-service'
+    'openid profile cmf_user isa-isa-webapi isa-checkout-webapi isa-cat-webapi isa-ava-webapi isa-crm-webapi isa-review-webapi isa-kpi-webapi isa-oms-webapi isa-nbo-webapi isa-print-webapi eis-service isa-inv-webapi'
 };
diff --git a/libs/sso/src/lib/sso.service.ts b/libs/sso/src/lib/sso.service.ts
index c7cf7cdef..5deb88e6a 100644
--- a/libs/sso/src/lib/sso.service.ts
+++ b/libs/sso/src/lib/sso.service.ts
@@ -13,6 +13,10 @@ export class SsoService {
     this.oauthService.configure(this.externalService.getConfigurations());
     this.oauthService.tokenValidationHandler = new JwksValidationHandler();
 
+    if (!!this.oauthService.silentRefreshRedirectUri) {
+      this.oauthService.setupAutomaticSilentRefresh();
+    }
+
     return this.oauthService.loadDiscoveryDocumentAndTryLogin().then(_ => {
       const hasIdToken = !!this.getIdToken();
       const hasAccessToken = !!this.getToken();