diff --git a/litellm/proxy/management_helpers/utils.py b/litellm/proxy/management_helpers/utils.py
index 58a7542d3..86c761a70 100644
--- a/litellm/proxy/management_helpers/utils.py
+++ b/litellm/proxy/management_helpers/utils.py
@@ -5,7 +5,7 @@ from datetime import datetime
 from functools import wraps
 from typing import Optional
 
-from fastapi import Request
+from fastapi import HTTPException, Request
 
 import litellm
 from litellm._logging import verbose_logger
@@ -81,7 +81,7 @@ async def add_new_member(
         )
         ## user email is not unique acc. to prisma schema -> future improvement
         ### for now: check if it exists in db, if not - insert it
-        existing_user_row = await prisma_client.get_data(
+        existing_user_row: Optional[list] = await prisma_client.get_data(
             key_val={"user_email": new_member.user_email},
             table_name="user",
             query_type="find_all",
@@ -89,8 +89,21 @@ async def add_new_member(
         if existing_user_row is None or (
             isinstance(existing_user_row, list) and len(existing_user_row) == 0
         ):
-
+            new_user_defaults["teams"] = [team_id]
             await prisma_client.insert_data(data=new_user_defaults, table_name="user")  # type: ignore
+        elif len(existing_user_row) == 1:
+            user_info = existing_user_row[0]
+            await prisma_client.db.litellm_usertable.update(
+                where={"user_id": user_info.user_id},
+                data={"teams": {"push": [team_id]}},
+            )
+        elif len(existing_user_row) > 1:
+            raise HTTPException(
+                status_code=400,
+                detail={
+                    "error": "Multiple users with this email found in db. Please use 'user_id' instead."
+                },
+            )
 
     # Check if trying to set a budget for team member
     if max_budget_in_team is not None and new_member.user_id is not None:
diff --git a/tests/test_team.py b/tests/test_team.py
index 45bd7138f..087a295e5 100644
--- a/tests/test_team.py
+++ b/tests/test_team.py
@@ -414,6 +414,42 @@ async def test_team_update_sc_2():
                 assert new_team_data["data"][k] == team_data[k]
 
 
+@pytest.mark.asyncio
+async def test_team_member_add_email():
+    from test_users import get_user_info
+
+    async with aiohttp.ClientSession() as session:
+        ## Create admin
+        admin_user = f"{uuid.uuid4()}"
+        await new_user(session=session, i=0, user_id=admin_user)
+        ## Create team with 1 admin and 1 user
+        member_list = [
+            {"role": "admin", "user_id": admin_user},
+        ]
+        team_data = await new_team(session=session, i=0, member_list=member_list)
+        ## Add 1 user via email
+        user_email = "krrish{}@berri.ai".format(uuid.uuid4())
+        new_user_info = await new_user(session=session, i=0, user_email=user_email)
+        new_member = {"role": "user", "user_email": user_email}
+        await add_member(
+            session=session, i=0, team_id=team_data["team_id"], members=[new_member]
+        )
+
+        ## check user info to confirm user is in team
+        updated_user_info = await get_user_info(
+            session=session, get_user=new_user_info["user_id"], call_user="sk-1234"
+        )
+
+        print(updated_user_info)
+
+        ## check if team in user table
+        is_team_in_list: bool = False
+        for team in updated_user_info["teams"]:
+            if team_data["team_id"] == team["team_id"]:
+                is_team_in_list = True
+        assert is_team_in_list
+
+
 @pytest.mark.asyncio
 async def test_team_delete():
     """