diff --git a/src/core/logging.py b/src/core/logging.py
index 7304dae..ffc4b05 100644
--- a/src/core/logging.py
+++ b/src/core/logging.py
@@ -1,15 +1,38 @@
 import logging
 import sys
 from logging.handlers import RotatingFileHandler
+from typing import Sequence
 
 from core.config import settings
 
+class ExtendedLogger(logging.Logger):
+    """Расширенный логгер с дополнительными методами для форматирования."""
+
+    def list(self, message: str, items: Sequence, limit: int | None = 20) -> None:
+        """
+        Логирует сообщение и список элементов в читаемом виде.
+        Пример:
+            logger.list("Common codes", ["A1", "B2", "C3"])
+        """
+        if not items:
+            formatted = "(empty)"
+        else:
+            items = [str(i) for i in items]
+            if limit and len(items) > limit:
+                formatted = ", ".join(items[:limit]) + f" ... (+{len(items) - limit} more)"
+            else:
+                formatted = ", ".join(items)
+        self.info(f"{message}: {formatted}")
 
 def setup_logging():
     """
     Инициализирует логирование для всего приложения.
     Конфигурирует консольный и файловый логгеры с ротацией.
     """
+
+    # Используем наш кастомный класс логгера
+    logging.setLoggerClass(ExtendedLogger)
+
     # Получаем уровень логирования из настроек, по умолчанию INFO
     level_name = settings.LOGGING_LEVEL if hasattr(settings, 'LOGGING_LEVEL') else 'INFO'
     log_level = getattr(logging, level_name, logging.INFO)
diff --git a/src/docbot/services/payments_service.py b/src/docbot/services/payments_service.py
index 25b6a4a..0094133 100644
--- a/src/docbot/services/payments_service.py
+++ b/src/docbot/services/payments_service.py
@@ -29,4 +29,37 @@ async def get_not_mapped_payments() -> Sequence[Row[Tuple[PaymentsRegistered]]]
             select(PaymentsRegistered)
         )
 
-        return result.all()
\ No newline at end of file
+        return result.all()
+
+
+async def update_payment_and_session(code: str) -> bool:
+    """
+    Updates both PaymentsRegistered and Sessions in a single transaction.
+    Returns True if both updates succeed, False if any update fails.
+    Automatically rolls back if any error occurs.
+    """
+    async with AsyncSessionLocal() as session:
+        async with session.begin():
+            try:
+                # Update PaymentsRegistered
+                payment_result = await session.execute(
+                    select(PaymentsRegistered).where(PaymentsRegistered.code == code)
+                )
+                payment = payment_result.scalar_one_or_none()
+                if not payment or payment.mapped is not None:
+                    return False
+                payment.mapped = True
+
+                # Update Sessions
+                session_result = await session.execute(
+                    select(Sessions).where(Sessions.code == code)
+                )
+                session_rec = session_result.scalar_one_or_none()
+                if not session_rec or session_rec.paid_at is not None:
+                    return False
+                session_rec.paid_at = datetime.utcnow()
+                
+                return True
+            except Exception as e:
+                logger.error(f"Transaction failed: {str(e)}")
+                raise  # This will trigger rollback
diff --git a/src/docbot/services/session_service.py b/src/docbot/services/session_service.py
index 5e26c07..3c8f80d 100644
--- a/src/docbot/services/session_service.py
+++ b/src/docbot/services/session_service.py
@@ -101,7 +101,7 @@ async def get_session_info(code: str) -> dict | None:
         }
 
 
-async def get_sessions_awaiting_payments() -> Sequence[Row[Sessions]]:
+async def get_sessions_awaiting_payments() -> Sequence[Row[Sessions]] | bool:
     async with AsyncSessionLocal() as session:
         async with session.begin():
             result = await session.execute(
diff --git a/src/docbot/tasks/payments.py b/src/docbot/tasks/payments.py
index e1ecd8c..cb874c6 100644
--- a/src/docbot/tasks/payments.py
+++ b/src/docbot/tasks/payments.py
@@ -1,9 +1,12 @@
 from telegram.ext import (
     ContextTypes
 )
-from docbot.services.payments_service import get_not_mapped_payments
+from typing import Sequence, List
+from docbot.services.payments_service import get_not_mapped_payments, update_payment_and_session
 from docbot.services.session_service import get_sessions_awaiting_payments
 from core.logging import logger
+from sqlalchemy import Row
+from db.models import PaymentsRegistered, Sessions
 
 # Сопоставляем оплаты, которые пришли от продамуса с сессиями, по которым ещё не было оплаты
 async def map_payments(context: ContextTypes.DEFAULT_TYPE) -> None:
@@ -15,3 +18,20 @@ async def map_payments(context: ContextTypes.DEFAULT_TYPE) -> None:
     
     for session in sessions_awaiting_payments:
         logger.info(f"Неоплаченная сессия: {session.Sessions.code}")
+
+    np_codes = [payment.PaymentsRegistered.code for payment in not_mapped_payments]
+    sa_codes = [session.Sessions.code for session in sessions_awaiting_payments]
+
+    common_codes: List[str] = list(set(np_codes).intersection(sa_codes))
+
+    if common_codes:
+        logger.list("Common codes", common_codes, None)
+
+            # Update the database for matching codes (example using raw SQL)
+        for code in common_codes:
+            logger.info(f"Updating payment and session for {code}")
+            success = await update_payment_and_session(code)
+            if not success:
+                logger.error(f"Failed to update payment and session for {code}")
+    else:
+        logger.info("Совпадения не найдены!")