diff --git a/bot/handlers/user/payment.py b/bot/handlers/user/payment.py
index 2249a3e..cc6f5e4 100644
--- a/bot/handlers/user/payment.py
+++ b/bot/handlers/user/payment.py
@@ -21,6 +21,7 @@ from bot.services.yookassa_service import YooKassaService
 from bot.middlewares.i18n import JsonI18n
 from config.settings import Settings
 from bot.services.notification_service import notify_admin_new_payment
+from bot.keyboards.inline.user_keyboards import get_connect_and_main_keyboard
 
 payment_processing_lock = asyncio.Lock()
 
@@ -176,6 +177,30 @@ async def process_successful_payment(session: AsyncSession, bot: Bot,
                 f"Failed to send final payment success message to user {user_id}: {e_notify}"
             )
 
+        config_link = activation_details.get("subscription_url") or _(
+            "config_link_not_available"
+        )
+        details_message = _(
+            "payment_successful_full",
+            end_date=final_end_date_for_user.strftime("%d.%m.%Y %H:%M:%S"),
+            config_link=config_link,
+        )
+        details_markup = get_connect_and_main_keyboard(
+            user_lang, i18n, settings, config_link
+        )
+        try:
+            await bot.send_message(
+                user_id,
+                details_message,
+                reply_markup=details_markup,
+                parse_mode="HTML",
+                disable_web_page_preview=True,
+            )
+        except Exception as e_notify:
+            logging.error(
+                f"Failed to send payment details message to user {user_id}: {e_notify}"
+            )
+
         await notify_admin_new_payment(
             bot,
             settings,
diff --git a/bot/keyboards/inline/user_keyboards.py b/bot/keyboards/inline/user_keyboards.py
index eaec5a8..2fb1953 100644
--- a/bot/keyboards/inline/user_keyboards.py
+++ b/bot/keyboards/inline/user_keyboards.py
@@ -185,3 +185,41 @@ def get_user_banned_keyboard(support_link: Optional[str], lang: str,
     builder = InlineKeyboardBuilder()
     builder.button(text=_(key="menu_support_button"), url=support_link)
     return builder.as_markup()
+
+
+def get_connect_and_main_keyboard(
+        lang: str,
+        i18n_instance,
+        settings: Settings,
+        config_link: Optional[str]) -> InlineKeyboardMarkup:
+    """Keyboard with a connect button and a back to main menu button."""
+    _ = lambda key, **kwargs: i18n_instance.gettext(lang, key, **kwargs)
+    builder = InlineKeyboardBuilder()
+
+    if settings.SUBSCRIPTION_MINI_APP_URL:
+        builder.row(
+            InlineKeyboardButton(
+                text=_("connect_button"),
+                web_app=WebAppInfo(url=settings.SUBSCRIPTION_MINI_APP_URL),
+            )
+        )
+    elif config_link:
+        builder.row(
+            InlineKeyboardButton(text=_("connect_button"), url=config_link)
+        )
+    else:
+        builder.row(
+            InlineKeyboardButton(
+                text=_("connect_button"),
+                callback_data="main_action:my_subscription",
+            )
+        )
+
+    builder.row(
+        InlineKeyboardButton(
+            text=_("back_to_main_menu_button"),
+            callback_data="main_action:back_to_main",
+        )
+    )
+
+    return builder.as_markup()
diff --git a/locales/en.json b/locales/en.json
index de1a5ad..1edcb7b 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -27,6 +27,7 @@
   "pay_with_yookassa_button": "💳 YooKassa",
   "pay_with_tribute_button": "❤️ Tribute",
   "pay_with_stars_button": "🌟 Telegram Stars",
+  "connect_button": "🔗 Connect",
   "cancel_button": "❌ Cancel",
   "payment_description_subscription": "Subscription payment for {months} mo.",
   "payment_service_unavailable": "Payment service temporarily unavailable. Please try again later.",
@@ -39,6 +40,7 @@
   "payment_successful_with_promo": "✅ Payment successful!\nYour {months}-month subscription (with promo bonus +{bonus_days} days) is active until {end_date}.",
   "payment_successful_with_referral_bonus": "✅ Payment successful!\nYour {months}-month subscription (base end date: {base_end_date}) has been extended by {bonus_days} bonus days for referral from {inviter_name} and is now active until {final_end_date}.",
   "payment_successful_error_details": "✅ Payment succeeded, but an error occurred displaying details. Your subscription is active. Contact support if anything is wrong.",
+  "payment_successful_full": "Thank you for your purchase!\n\nSubscription paid until: <b>{end_date}</b>\n\nConnection key:\n<code>{config_link}</code>\n\nTo connect, open the link and follow the instructions 👇",
   "payment_failed": "❌ Payment failed or was cancelled. Please try again or contact support.",
   "error_processing_your_payment": "An error occurred processing your payment after success. Please contact support with the details.",
 
diff --git a/locales/ru.json b/locales/ru.json
index fac70f8..a0a8877 100644
--- a/locales/ru.json
+++ b/locales/ru.json
@@ -27,6 +27,7 @@
   "pay_with_yookassa_button": "💳 ЮKassa",
   "pay_with_tribute_button": "❤️ Tribute",
   "pay_with_stars_button": "🌟 Звезды Telegram",
+  "connect_button": "🔗 Подключиться",
   "cancel_button": "❌ Отмена",
   "payment_description_subscription": "Оплата подписки на {months} мес.",
   "payment_service_unavailable": "Платежный сервис временно недоступен. Пожалуйста, попробуйте позже.",
@@ -39,6 +40,7 @@
   "payment_successful_with_promo": "✅ Оплата прошла успешно!\nВаша подписка на {months} мес. (с учетом промокода на +{bonus_days} дней) активна до {end_date}.",
   "payment_successful_with_referral_bonus": "✅ Оплата прошла успешно!\nВаша подписка на {months} мес. (базовая дата окончания: {base_end_date}) продлена на {bonus_days} бонусных дней за приглашение от {inviter_name} и теперь активна до {final_end_date}.",
   "payment_successful_error_details": "✅ Оплата прошла успешно, но возникла ошибка при отображении деталей. Ваша подписка активна. Свяжитесь с поддержкой, если что-то не так.",
+  "payment_successful_full": "Спасибо за покупку!\n\nПодписка оплачена до: <b>{end_date}</b>\n\nКлюч подключения:\n<code>{config_link}</code>\n\nЧтобы подключиться, перейдите по ссылке и следуйте инструкции 👇",
   "payment_failed": "❌ Оплата не удалась или была отменена. Пожалуйста, попробуйте еще раз или свяжитесь с поддержкой.",
   "error_processing_your_payment": "Произошла ошибка при обработке вашего платежа после его успеха. Пожалуйста, свяжитесь с поддержкой, указав детали.",