diff --git a/app/notifier.py b/app/notifier.py
index 7128107..6dda6f5 100644
--- a/app/notifier.py
+++ b/app/notifier.py
@@ -21,7 +21,7 @@ def format_message(sender, recipient) -> Tuple[EmailMessage, str]:
     Creates the email message and formats it accordingly
     """
     code = token_hex(4)
-    body = "La clave es {}. Envíele esta clave al bot.".format()
+    body = f"La clave es {code}. Envíele esta clave al bot."
     message = EmailMessage()
     message["From"] = sender
     message["To"] = recipient
@@ -36,6 +36,6 @@ def send_mail(recipient) -> None:
     """
     server = initialize_smtp(domain=DOMAIN, username=USERNAME, password=PASSWORD)
     message, code = format_message(sender=USERNAME, recipient=recipient)
-    save_attribute(attribute="codigo", data=code)
+    save_attribute(id=recipient, attribute="codigo", data=code)
     server.send_message(msg=message)
     server.close()
diff --git a/database/crud.py b/database/crud.py
index e75877b..019c9de 100644
--- a/database/crud.py
+++ b/database/crud.py
@@ -1,5 +1,4 @@
 from sqlalchemy import or_
-from sqlalchemy.orm import Query
 
 from database import SessionLocal, engine, models
 from database.models import User
@@ -7,12 +6,14 @@ from database.models import User
 db = SessionLocal()
 
 
-def search_database(id) -> Query:
+def search_database(id) -> User:
     """
     Returns the user associated with the id argument
     """
-    return db.query(User).filter(
-        or_(User.correo_institucional == id, User.numero_de_documento == id)
+    return (
+        db.query(User)
+        .filter(or_(User.correo_institucional == id, User.numero_de_documento == id))
+        .first()
     )
 
 
@@ -37,7 +38,7 @@ def create_database(data) -> None:
     insert_data(data)
 
 
-def save_attribute(attribute, data) -> None:
+def save_attribute(id, attribute, data) -> None:
     """
     Updates the attribute value with the content of data
     """
@@ -45,6 +46,7 @@ def save_attribute(attribute, data) -> None:
     db.query(User).filter(
         or_(User.correo_institucional == id, User.numero_de_documento == id)
     ).update({key: data})
+    db.commit()
 
 
 def verify_code(id, code) -> bool:
@@ -52,7 +54,7 @@ def verify_code(id, code) -> bool:
     Verifies that two-factor authentification code matches the database record
     """
     db_record = search_database(id=id)
-    valid_code = code == db_record
+    valid_code = code == db_record.codigo
     if valid_code:
         return True
     return False