diff --git a/mailpoet/assets/js/src/global.d.ts b/mailpoet/assets/js/src/global.d.ts
index a758ab55d4..030fe5de1e 100644
--- a/mailpoet/assets/js/src/global.d.ts
+++ b/mailpoet/assets/js/src/global.d.ts
@@ -102,6 +102,7 @@ interface Window {
   mailpoet_has_valid_api_key: boolean;
   mailpoet_has_valid_premium_key: string;
   mailpoet_mss_key_invalid: boolean;
+  mailpoet_mss_key_valid: boolean;
   mailpoet_mta_method: string;
   mailpoet_date_offset: string;
   mailpoet_time_format: string;
diff --git a/mailpoet/assets/js/src/mailpoet.ts b/mailpoet/assets/js/src/mailpoet.ts
index 66efb21943..1359f5f1d0 100644
--- a/mailpoet/assets/js/src/mailpoet.ts
+++ b/mailpoet/assets/js/src/mailpoet.ts
@@ -31,6 +31,8 @@ export const MailPoet = {
   hasValidApiKey: window.mailpoet_has_valid_api_key,
   // The key is valid and has access to premium features
   hasValidPremiumKey: window.mailpoet_has_valid_premium_key,
+  // The key is valid and has access to MSS
+  hasValidMssApiKey: window.mailpoet_mss_key_valid,
   // The key is invalid and has no access to MSS
   hasInvalidMssApiKey: window.mailpoet_mss_key_invalid,
   mtaMethod: window.mailpoet_mta_method,
diff --git a/mailpoet/lib/AdminPages/PageRenderer.php b/mailpoet/lib/AdminPages/PageRenderer.php
index f0db46c3ed..4225de0b62 100644
--- a/mailpoet/lib/AdminPages/PageRenderer.php
+++ b/mailpoet/lib/AdminPages/PageRenderer.php
@@ -162,6 +162,7 @@ class PageRenderer {
       'has_premium_support' => $this->subscribersFeature->hasPremiumSupport(),
       'has_mss_key_specified' => Bridge::isMSSKeySpecified(),
       'mss_key_invalid' => $this->servicesChecker->isMailPoetAPIKeyValid() === false,
+      'mss_key_valid' => $this->subscribersFeature->hasValidMssKey(),
       'mss_key_pending_approval' => $this->servicesChecker->isMailPoetAPIKeyPendingApproval(),
       'mss_active' => $this->bridge->isMailpoetSendingServiceEnabled(),
       'plugin_partial_key' => $this->servicesChecker->generatePartialApiKey(),
diff --git a/mailpoet/views/layout.html b/mailpoet/views/layout.html
index 22c47a8d14..1075d96233 100644
--- a/mailpoet/views/layout.html
+++ b/mailpoet/views/layout.html
@@ -99,6 +99,7 @@ jQuery('#adminmenu #toplevel_page_mailpoet-newsletters')
   var mailpoet_has_premium_support = <%= json_encode(has_premium_support) %>;
   var has_mss_key_specified = <%= json_encode(has_mss_key_specified) %>;
   var mailpoet_mss_key_invalid = <%= json_encode(mss_key_invalid) %>;
+  var mailpoet_mss_key_valid = <%= json_encode(mss_key_valid) %>;
   var mailpoet_mss_key_pending_approval = '<%= mss_key_pending_approval %>';
   var mailpoet_mss_active = <%= json_encode(mss_active) %>;
   var mailpoet_plugin_partial_key = '<%= plugin_partial_key %>';