diff --git a/src/adapter/parser.py b/src/adapter/parser.py
index 2ab8199..ed84005 100644
--- a/src/adapter/parser.py
+++ b/src/adapter/parser.py
@@ -10,12 +10,11 @@ log = logging.getLogger(__name__)
 
 
 class FetchChannelResponse(BaseModel):
-    id: str
     telegram_id: int
     username: str | None
     title: str | None
-    access_hash: int
-    pts: int
+    access_hash: int | None
+    pts: int | None
 
 
 class ParserClient(Parser):
diff --git a/src/adapter/postgres.py b/src/adapter/postgres.py
index 005405e..a3d6f83 100644
--- a/src/adapter/postgres.py
+++ b/src/adapter/postgres.py
@@ -549,7 +549,15 @@ class Postgres(DatabaseBase):
         telegram_user_id: uuid.UUID, placement_post_id: uuid.UUID
     ) -> domain.Subscription | None:
         return await domain.Subscription.get_or_none(
-            telegram_user_id=telegram_user_id, placement_post_id=placement_post_id
+            telegram_user_id=telegram_user_id, placement_id=placement_post_id
+        )
+
+    @staticmethod
+    async def get_subscription_by_subscriber_and_placement(
+        telegram_user_id: uuid.UUID, placement_id: uuid.UUID
+    ) -> domain.Subscription | None:
+        return await domain.Subscription.get_or_none(
+            telegram_user_id=telegram_user_id, placement_id=placement_id
         )
 
     @staticmethod
@@ -563,10 +571,18 @@ class Postgres(DatabaseBase):
         date_from: datetime.datetime | None = None,
         date_to: datetime.datetime | None = None,
     ) -> list[domain.Subscription]:
+        """Get subscriptions for placement_posts by finding their parent placements."""
         if not placement_post_ids:
             return []
 
-        query = domain.Subscription.filter(placement_post_id__in=placement_post_ids)
+        # Get placement_ids from placement_posts
+        placement_posts = await domain.PlacementPost.filter(id__in=placement_post_ids).all()
+        placement_ids = [pp.placement_id for pp in placement_posts]
+
+        if not placement_ids:
+            return []
+
+        query = domain.Subscription.filter(placement_id__in=placement_ids)
 
         if date_from:
             query = query.filter(created_at__gte=date_from)
@@ -636,7 +652,15 @@ class Postgres(DatabaseBase):
 
     @staticmethod
     async def count_subscriptions_by_placement_post(placement_post_id: uuid.UUID) -> int:
-        return await domain.Subscription.filter(placement_post_id=placement_post_id).count()
+        """Count subscriptions for a placement_post by finding its parent placement."""
+        placement_post = await domain.PlacementPost.get_or_none(id=placement_post_id)
+        if not placement_post:
+            return 0
+        return await domain.Subscription.filter(placement_id=placement_post.placement_id).count()
+
+    @staticmethod
+    async def count_subscriptions_by_placement(placement_id: uuid.UUID) -> int:
+        return await domain.Subscription.filter(placement_id=placement_id).count()
 
     @staticmethod
     async def count_placement_posts_by_creative_batch(creative_ids: list[uuid.UUID]) -> dict[uuid.UUID, int]:
@@ -657,20 +681,57 @@ class Postgres(DatabaseBase):
 
     @staticmethod
     async def count_subscriptions_by_placement_post_batch(placement_post_ids: list[uuid.UUID]) -> dict[uuid.UUID, int]:
+        """Count subscriptions for placement_posts by finding their parent placements."""
         if not placement_post_ids:
             return {}
 
         from tortoise.functions import Count
 
+        # Get placement_ids from placement_posts
+        placement_posts = await domain.PlacementPost.filter(id__in=placement_post_ids).all()
+        placement_id_to_post_ids: dict[uuid.UUID, list[uuid.UUID]] = {}
+        for pp in placement_posts:
+            placement_id_to_post_ids.setdefault(pp.placement_id, []).append(pp.id)
+
+        placement_ids = list(placement_id_to_post_ids.keys())
+        if not placement_ids:
+            return dict.fromkeys(placement_post_ids, 0)
+
+        # Count subscriptions by placement
         results = (
-            await domain.Subscription.filter(placement_post_id__in=placement_post_ids)
-            .group_by('placement_post_id')
+            await domain.Subscription.filter(placement_id__in=placement_ids)
+            .group_by('placement_id')
             .annotate(count=Count('id'))
-            .values('placement_post_id', 'count')
+            .values('placement_id', 'count')
         )
 
-        counts = {row['placement_post_id']: row['count'] for row in results}
-        return {pid: counts.get(pid, 0) for pid in placement_post_ids}
+        placement_counts = {row['placement_id']: row['count'] for row in results}
+
+        # Map back to placement_post_ids
+        post_counts: dict[uuid.UUID, int] = {}
+        for placement_id, post_ids in placement_id_to_post_ids.items():
+            count = placement_counts.get(placement_id, 0)
+            for post_id in post_ids:
+                post_counts[post_id] = count
+
+        return {pid: post_counts.get(pid, 0) for pid in placement_post_ids}
+
+    @staticmethod
+    async def count_subscriptions_by_placement_batch(placement_ids: list[uuid.UUID]) -> dict[uuid.UUID, int]:
+        if not placement_ids:
+            return {}
+
+        from tortoise.functions import Count
+
+        results = (
+            await domain.Subscription.filter(placement_id__in=placement_ids)
+            .group_by('placement_id')
+            .annotate(count=Count('id'))
+            .values('placement_id', 'count')
+        )
+
+        counts = {row['placement_id']: row['count'] for row in results}
+        return {pid: counts.get(pid, 0) for pid in placement_ids}
 
     @staticmethod
     async def has_placement_posts_for_creative(creative_id: uuid.UUID) -> bool:
diff --git a/src/adapter/telegram_bot.py b/src/adapter/telegram_bot.py
index 9cc4a79..1c5498a 100644
--- a/src/adapter/telegram_bot.py
+++ b/src/adapter/telegram_bot.py
@@ -1,7 +1,13 @@
 import logging
+from collections.abc import Sequence
 from typing import Any
 
-from aiogram.types import InlineKeyboardButton, InlineKeyboardMarkup, InputMediaPhoto, InputMediaVideo
+from aiogram.types import (
+    InlineKeyboardButton,
+    InlineKeyboardMarkup,
+    InputMediaPhoto,
+    InputMediaVideo,
+)
 
 from shared.telegram_base import TelegramBase
 from src.usecase import TelegramBotWriter
@@ -85,14 +91,14 @@ class TelegramBot(TelegramBase, TelegramBotWriter):
     async def send_media_group(
         self,
         chat_id: int,
-        media_items: list[Any],
+        media_items: Sequence[Any],
         caption: str | None = None,
         parse_mode: str | None = None,
     ) -> None:
         if not media_items:
             return
 
-        group = []
+        group: list[InputMediaPhoto | InputMediaVideo] = []
         for index, item in enumerate(media_items):
             item_caption = caption if index == 0 else None
             if item.media_type == 'photo':
@@ -106,7 +112,8 @@ class TelegramBot(TelegramBase, TelegramBotWriter):
             else:
                 raise ValueError(f'Unsupported media type for group: {item.media_type}')
 
-        await self.bot.send_media_group(chat_id=chat_id, media=group)
+        # Type ignore: aiogram expects Union type but we only use Photo/Video
+        await self.bot.send_media_group(chat_id=chat_id, media=group)  # type: ignore[arg-type]
 
     async def edit_message_text(self, text: str, chat_id: int, message_id: int) -> None:
         await self.bot.edit_message_text(chat_id=chat_id, message_id=message_id, text=text, reply_markup=None)
diff --git a/src/domain/creative.py b/src/domain/creative.py
index fd01885..6c7e1da 100644
--- a/src/domain/creative.py
+++ b/src/domain/creative.py
@@ -15,6 +15,7 @@ from .error import (
 )
 
 if TYPE_CHECKING:
+
     from .project import Project
     from .user import User
 
@@ -46,6 +47,7 @@ class Creative(TimestampedModel):
     if TYPE_CHECKING:
         project_id: UUID
         created_by_user_id: UUID | None
+        media_items: 'fields.ReverseRelation[CreativeMedia]'
 
     class Meta:
         table = 'creative'
diff --git a/src/dto/__init__.py b/src/dto/__init__.py
index 278b462..efa9b87 100644
--- a/src/dto/__init__.py
+++ b/src/dto/__init__.py
@@ -125,12 +125,12 @@ from .analytics import (
 from .channel import (
     AttachChannelToWorkspaceInput,
     ChannelOutput,
+    CreateChannelInput,
+    CreateChannelResult,
+    CreateChannelsInput,
+    CreateChannelsOutput,
     GetChannelInput,
     GetChannelsInput,
-    CreateChannelInput,
-    CreateChannelsInput,
-    CreateChannelResult,
-    CreateChannelsOutput,
     GetChannelsOutput,
 )
 from .creative import (
diff --git a/src/usecase/__init__.py b/src/usecase/__init__.py
index 9c3a54d..cf8da6c 100644
--- a/src/usecase/__init__.py
+++ b/src/usecase/__init__.py
@@ -1,4 +1,5 @@
 import typing
+from collections.abc import Sequence
 from dataclasses import dataclass
 from uuid import UUID
 
@@ -94,7 +95,7 @@ class TelegramBotWriter(typing.Protocol):
     async def send_media_group(
         self,
         chat_id: int,
-        media_items: list[MediaItem],
+        media_items: Sequence[MediaItem],
         caption: str | None = None,
         parse_mode: str | None = None,
     ) -> None: ...
diff --git a/src/usecase/analytics/get_overview_analytics.py b/src/usecase/analytics/get_overview_analytics.py
index b4310ba..2100d5f 100644
--- a/src/usecase/analytics/get_overview_analytics.py
+++ b/src/usecase/analytics/get_overview_analytics.py
@@ -86,13 +86,17 @@ async def get_overview_analytics(
         elif placement_date >= previous_period_start and placement_date < input.date_from:
             previous_placements.append(placement_post)
 
-    placement_ids = [p.id for p in placements]
+    placement_post_ids = [p.id for p in placements]
     subscriptions = await self.database.get_subscriptions_for_placement_posts(
-        placement_ids, date_from=previous_period_start, date_to=input.date_to
+        placement_post_ids, date_from=previous_period_start, date_to=input.date_to
     )
 
-    subs_per_placement_current: dict[UUID, int] = defaultdict(int)
-    subs_per_placement_previous: dict[UUID, int] = defaultdict(int)
+    # Map placement_post_id to placement_id for subscription aggregation
+    # Since subscriptions link to placement, we need to map back to placement_post
+    placement_post_to_placement: dict[UUID, UUID] = {p.id: p.placement_id for p in placements}
+
+    subs_per_placement_post_current: dict[UUID, int] = defaultdict(int)
+    subs_per_placement_post_previous: dict[UUID, int] = defaultdict(int)
     subs_per_day_current: dict[datetime.date, int] = defaultdict(int)
 
     for sub in subscriptions:
@@ -100,17 +104,24 @@ async def get_overview_analytics(
         if created_at is None:
             continue
 
+        # Find which placement_post(s) this subscription belongs to via placement_id
+        # A placement can have multiple placement_posts, so we count it for each
+        for pp_id, p_id in placement_post_to_placement.items():
+            if p_id == sub.placement_id:
+                if created_at >= input.date_from and created_at <= input.date_to:
+                    subs_per_placement_post_current[pp_id] += 1
+                elif created_at >= previous_period_start and created_at < input.date_from:
+                    subs_per_placement_post_previous[pp_id] += 1
+
+        # Count each subscription only once for daily stats
         if created_at >= input.date_from and created_at <= input.date_to:
-            subs_per_placement_current[sub.placement_post_id] += 1
             subs_per_day_current[created_at.date()] += 1
-        elif created_at >= previous_period_start and created_at < input.date_from:
-            subs_per_placement_previous[sub.placement_post_id] += 1
 
     post_ids = [p.post.id for p in placements if p.post]
     views_map = await self.database.get_latest_views_data_batch(post_ids) if post_ids else {}
 
     def _aggregate_totals(
-        placement_list: list[domain.PlacementPost], subs_per_placement: dict[UUID, int]
+        placement_list: list[domain.PlacementPost], subs_per_placement_post: dict[UUID, int]
     ) -> tuple[float, int, int]:
         total_cost = 0.0
         total_subscriptions = 0
@@ -119,7 +130,7 @@ async def get_overview_analytics(
         for placement_post in placement_list:
             total_cost += _get_cost(placement_post)
 
-            subs = subs_per_placement.get(placement_post.id, 0)
+            subs = subs_per_placement_post.get(placement_post.id, 0)
             total_subscriptions += subs
 
             if placement_post.post and placement_post.post.id in views_map:
@@ -127,8 +138,12 @@ async def get_overview_analytics(
 
         return total_cost, total_subscriptions, total_views
 
-    current_cost, current_subs, current_views = _aggregate_totals(current_placements, subs_per_placement_current)
-    previous_cost, previous_subs, previous_views = _aggregate_totals(previous_placements, subs_per_placement_previous)
+    current_cost, current_subs, current_views = _aggregate_totals(
+        current_placements, subs_per_placement_post_current
+    )
+    previous_cost, previous_subs, previous_views = _aggregate_totals(
+        previous_placements, subs_per_placement_post_previous
+    )
 
     # Apply hide_subscriptions filter
     if hide_subscriptions:
@@ -159,7 +174,7 @@ async def get_overview_analytics(
         cost_value = _get_cost(placement_post)
         cost_per_day[placement_day] += cost_value
         project_spending_map[placement.project_id] += cost_value
-        subs = subs_per_placement_current.get(placement_post.id, 0)
+        subs = subs_per_placement_post_current.get(placement_post.id, 0)
 
         channel_id = placement.channel_id
         if channel_id not in channel_stats:
diff --git a/src/usecase/project/tg_add_project.py b/src/usecase/project/tg_add_project.py
index bd38ad2..44d3e0d 100644
--- a/src/usecase/project/tg_add_project.py
+++ b/src/usecase/project/tg_add_project.py
@@ -124,7 +124,11 @@ async def tg_add_project(self: 'Usecase', input: dto.ConnectProjectInput) -> dto
         if channel.telegram_id != telegram_id:
             channel.telegram_id = telegram_id
             updated = True
-        if parser_response and parser_response.access_hash is not None and channel.access_hash != parser_response.access_hash:
+        if (
+            parser_response
+            and parser_response.access_hash is not None
+            and channel.access_hash != parser_response.access_hash
+        ):
             channel.access_hash = parser_response.access_hash
             updated = True
         if parser_response and parser_response.pts is not None and channel.pts != parser_response.pts:
diff --git a/src/usecase/subscription/handle_subscription.py b/src/usecase/subscription/handle_subscription.py
index 8d6b1b2..7b2430b 100644
--- a/src/usecase/subscription/handle_subscription.py
+++ b/src/usecase/subscription/handle_subscription.py
@@ -17,11 +17,13 @@ async def handle_subscription(
     first_name: str | None = None,
     last_name: str | None = None,
 ) -> None:
-    placement = await self.database.get_placement_by_invite_link(invite_link)
-    if not placement:
-        log.warning('Placement not found for invite_link: %s', invite_link)
+    placement_post = await self.database.get_placement_post_by_invite_link(invite_link)
+    if not placement_post or not placement_post.placement:
+        log.warning('PlacementPost not found for invite_link: %s', invite_link)
         return
 
+    placement = placement_post.placement
+
     subscriber = await self.database.get_telegram_user(telegram_id=user_telegram_id)
     if not subscriber:
         subscriber = domain.TelegramUser(
@@ -57,6 +59,7 @@ async def handle_subscription(
         return
 
     # Проверяем, была ли раньше подписка через ЭТОТ placement (для реактивации)
+    # Note: Subscription now links to placement directly, not placement_post
     existing_sub = await self.database.get_subscription_by_subscriber_and_placement(
         subscriber.id, placement.id
     )