---
title: Users | Avara
description: Add accepted users to Express customers so they can see that tenant’s studies — and only those studies.
---

A member sees a tenant’s studies only after they belong to that Express customer. Isolation rules are on [Isolation](/integration/express/isolation/index.md).

Invite first from [AutoScribe](/autoscribe/inviting-users/index.md) or [Viewer](/viewer/inviting-users/index.md). The person must **accept** the invitation before you can add them to a customer.

A user can belong to more than one customer (shared readers across sites). They then see the union of those customers’ studies — never other tenants, never unattached studies.

Do not make end-customer users admins.

## Via dashboard

1. Open **Express Customers** and select a customer.
2. Click **Add User**.
3. Choose a user who has accepted their invitation.
4. Click **Add**.

## Add

### TypeScript

```
import Avara from "avara";


const client = new Avara({
  apiKey: process.env.AVARA_API_KEY,
});


await client.express.users.add("cus_1234567890abcdef1234567890abcdef", {
  userId: "usr_1234567890abcdef1234567890abcdef",
});
```

### Python

```
import os
from avara import Avara


client = Avara(
    api_key=os.environ.get("AVARA_API_KEY"),
)
client.express.users.add(
    "cus_1234567890abcdef1234567890abcdef",
    user_id="usr_1234567890abcdef1234567890abcdef",
)
```

### Java

```
package com.avara.example;


import com.avara.client.AvaraClient;
import com.avara.client.okhttp.AvaraOkHttpClient;
import com.avara.models.express.users.UserAddParams;


public final class Main {
    private Main() {}


    public static void main(String[] args) {
        AvaraClient client = AvaraOkHttpClient.fromEnv();


        UserAddParams params = UserAddParams.builder()
            .userId("usr_1234567890abcdef1234567890abcdef")
            .build();
        client.express().users().add(
            "cus_1234567890abcdef1234567890abcdef",
            params
        );
    }
}
```

### C\#

```
using Avara;
using Avara.Models.Express.Users;


var client = new AvaraClient();


await client.Express.Users.Add(
    "cus_1234567890abcdef1234567890abcdef",
    new UserAddParams
    {
        UserId = "usr_1234567890abcdef1234567890abcdef",
    }
);
```

## Remove

### TypeScript

```
await client.express.users.remove("cus_1234567890abcdef1234567890abcdef", {
  userId: "usr_1234567890abcdef1234567890abcdef",
});
```

### Python

```
client.express.users.remove(
    "cus_1234567890abcdef1234567890abcdef",
    user_id="usr_1234567890abcdef1234567890abcdef",
)
```

### Java

```
UserRemoveParams params = UserRemoveParams.builder()
    .userId("usr_1234567890abcdef1234567890abcdef")
    .build();
client.express().users().remove(
    "cus_1234567890abcdef1234567890abcdef",
    params
);
```

### C\#

```
await client.Express.Users.Remove(
    "cus_1234567890abcdef1234567890abcdef",
    new UserRemoveParams
    {
        UserId = "usr_1234567890abcdef1234567890abcdef",
    }
);
```

For every field on these calls, see the [API Reference](https://docs.avarasoftware.com/api).