BerriAI/litellm · error · HTTPException

User not found for user_id={member.user_id} and user_email={

Error message

User not found for user_id={member.user_id} and user_email={member.user_email}

What it means

Neither the provided user_id nor user_email matched any LiteLLM_UserTable row and no lookup key was resolvable, so the member-creation path has no user to attach to the organization. Raised as 404; the at-fault input is member identifiers that reference no existing user.

Source

Thrown at litellm/proxy/management_endpoints/organization_endpoints.py:1550

            new_user_defaults: Final = get_new_internal_user_defaults(
                user_id=user_id,
                user_email=member.user_email,
            )

            _returned_user = await prisma_client.insert_data(data=new_user_defaults, table_name="user")
            if _returned_user is not None:
                user_object = LiteLLM_UserTable.model_validate(_returned_user.model_dump())
        elif existing_user_email_row is not None and len(existing_user_email_row) > 1:
            raise HTTPException(
                status_code=400,
                detail={"error": "Multiple users with this email found in db. Please use 'user_id' instead."},
            )
        elif existing_user_email_row is not None:
            user_object = LiteLLM_UserTable.model_validate(existing_user_email_row.model_dump())
        elif existing_user_id_row is not None:
            user_object = LiteLLM_UserTable.model_validate(existing_user_id_row.model_dump())
        else:
            raise HTTPException(
                status_code=404,
                detail={"error": f"User not found for user_id={member.user_id} and user_email={member.user_email}"},
            )

        if user_object is None:
            raise ValueError(
                f"User does not exist in LiteLLM_UserTable. user_id={member.user_id} and user_email={member.user_email}"
            )

        # Add user to organization
        _organization_membership: Final = await _table(OrganizationMembershipRepository(prisma_client)).create(
            data={
                "organization_id": organization_id,
                "user_id": user_object.user_id,
                "user_role": member.role,
            }
        )
        organization_membership: Final = LiteLLM_OrganizationMembershipTable.model_validate(

View on GitHub (pinned to 77b7c6c40c)

Solutions

1. Verify the user_id/user_email exists in LiteLLM_UserTable via /user/list.

When it happens

Trigger: Thrown at litellm/proxy/management_endpoints/organization_endpoints.py:1550 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of BerriAI/litellm@77b7c6c40c (2026-08-18). Data as JSON: /api/errors/61fcc028199a9912. Report an issue: GitHub.