diff --git a/src/telegram-bot/telegram-bot.service.ts b/src/telegram-bot/telegram-bot.service.ts
index cf433cf..44d741b 100644
--- a/src/telegram-bot/telegram-bot.service.ts
+++ b/src/telegram-bot/telegram-bot.service.ts
@@ -64,6 +64,10 @@ export class TelegramBotService {
         `/help`
       ].join('\n');
     }
+    this.logger.debug(
+      `Sent help message for telegramChatId = ${msg.chat.id}, ` +
+        `message = ${helpMessage}`,
+    );
     this.bot.sendMessage(msg.chat.id, helpMessage);
   }
 
@@ -77,6 +81,11 @@ export class TelegramBotService {
     if (!userMetaInfo) return false;
     const chatId = userMetaInfo.telegram_chat_id;
     await this.bot.sendMessage(chatId, msg);
+    this.logger.debug(
+      `Sent message for redmineUserId = ${redmineId}, ` +
+        `telegramChatId = ${chatId}, ` +
+        `message = ${msg}`,
+    );
     return true;
   }