diff --git a/server/notification-providers/serwersms.js b/server/notification-providers/serwersms.js
index f7c8644af..1f4740fa8 100644
--- a/server/notification-providers/serwersms.js
+++ b/server/notification-providers/serwersms.js
@@ -17,6 +17,8 @@ class SerwerSMS extends NotificationProvider {
                     "Content-Type": "application/json",
                 }
             };
+
+            // Use phone as first option
             let data = {
                 "username": notification.serwersmsUsername,
                 "password": notification.serwersmsPassword,
@@ -27,6 +29,13 @@ class SerwerSMS extends NotificationProvider {
 
             let resp = await axios.post(url, data, config);
 
+            if (!resp.data.success) {
+                // If unsuccessful, try using group_id
+                data.phone = null; // Clear phone number
+                data.group_id = notification.serwersmsPhoneNumber;
+                resp = await axios.post(url, data, config);
+            }
+
             if (!resp.data.success) {
                 if (resp.data.error) {
                     let error = `SerwerSMS.pl API returned error code ${resp.data.error.code} (${resp.data.error.type}) with error message: ${resp.data.error.message}`;
diff --git a/src/components/notifications/SerwerSMS.vue b/src/components/notifications/SerwerSMS.vue
index 32a0ff7a8..5d7398bd6 100644
--- a/src/components/notifications/SerwerSMS.vue
+++ b/src/components/notifications/SerwerSMS.vue
@@ -8,7 +8,7 @@
         <HiddenInput id="serwersms-key" v-model="$parent.notification.serwersmsPassword" :required="true" autocomplete="new-password"></HiddenInput>
     </div>
     <div class="mb-3">
-        <label for="serwersms-phone-number" class="form-label">{{ $t("serwersmsPhoneNumber") }}</label>
+        <label for="serwersms-phone-number" class="form-label">{{ $t("serwersmsPhoneNumberGroupId") }}</label>
         <input id="serwersms-phone-number" v-model="$parent.notification.serwersmsPhoneNumber" type="text" class="form-control" required>
     </div>
     <div class="mb-3">
diff --git a/src/lang/pl.json b/src/lang/pl.json
index 82517a1d7..871ba958e 100644
--- a/src/lang/pl.json
+++ b/src/lang/pl.json
@@ -360,6 +360,7 @@
     "serwersmsAPIUser": "Nazwa użytkownika API (z prefiksem webapi_)",
     "serwersmsAPIPassword": "Hasło API",
     "serwersmsPhoneNumber": "Numer telefonu",
+    "serwersmsPhoneNumberGroupId": "Numer telefonu lub ID Grupy",
     "serwersmsSenderName": "Nazwa nadawcy (zatwierdzona w panelu klienta)",
     "smseagle": "SMSEagle",
     "smseagleTo": "Numer/y telefonu",