diff --git a/apps/devops/app/common/models/deployment/deployment.py b/apps/devops/app/common/models/deployment/deployment.py
index b47c423..dc50780 100644
--- a/apps/devops/app/common/models/deployment/deployment.py
+++ b/apps/devops/app/common/models/deployment/deployment.py
@@ -4,7 +4,6 @@ from dataclasses import dataclass
 from enum import Enum
 
 from beanie import Document
-from bson import ObjectId
 from pydantic import Field, field_validator
 from pydantic import BaseModel
 from pymongo import IndexModel
@@ -26,6 +25,7 @@ class Deployment(Document):
     deployment_git_url: str
     deployment_git_sha256: str
     deployment_reason: str
+    deployment_app_url: str = "" # URL to access the deployed application, keep it empty to be filled later
 
     deployed_by: str
     created_at: datetime = datetime.now()
@@ -41,8 +41,8 @@ class Deployment(Document):
 
 class InitDeploymentRequest(BaseModel):
     product_id: str
-    sha256: str
-    target_env: str
+    sha256: str = ""
+    target_env: Literal["alpha", "prod"]
     user_id: str
     reason: str = "not provided"
     ttl_hours: int = 3
@@ -54,7 +54,7 @@ class CheckDeploymentStatusRequest(BaseModel):
 
 class CheckApplicationLogsRequest(BaseModel):
     product_id: str
-    target_env: Literal["alpha", "prod"] = "alpha"
+    target_env: Literal["alpha", "prod"]
     user_id: str = ''
     log_level: List[Literal["info", "error", "debug"]] = Field(default_factory=lambda: ["info"])
     start_time: datetime = datetime.now() - timedelta(minutes=5)