## Update

`ExpressUpdateResponse express().update(ExpressUpdateParamsparams = ExpressUpdateParams.none(), RequestOptionsrequestOptions = RequestOptions.none())`

**patch** `/v1/express/{expressCustomerId}`

Updates a customer's properties such as name or other metadata. All fields are optional - only provided fields will be updated.

### Parameters

- `ExpressUpdateParams params`

  - `Optional<String> expressCustomerId`

    Unique Express customer identifier. Format: cus_{32-hex-chars}

  - `Optional<String> expressCustomerName`

    Updated name for the Express customer

  - `Optional<Metadata> metadata`

    Updated metadata. Pass null to clear all metadata

### Returns

- `class ExpressUpdateResponse:`

  An Express customer entity that groups users and studies

  - `Optional<LocalDateTime> createdAt`

    Timestamp when the Express customer was created

  - `String expressCustomerId`

    Unique Express customer identifier. Format: cus_{32-hex-chars}

  - `String expressCustomerName`

    Name of the Express customer

  - `boolean isActive`

    Whether the Express customer is currently active

  - `Optional<LocalDateTime> updatedAt`

    Timestamp when the Express customer was last updated

  - `long userCount`

    Number of users currently in this Express customer

  - `Optional<String> createdByApiKeyId`

    UUID of the API key used to create this Express customer, for audit tracking

  - `Optional<String> createdByUserId`

    User ID who created this Express customer via dashboard, null if created via API key

  - `Optional<Metadata> metadata`

    Custom key-value metadata for the Express customer. Maximum 50 pairs, keys up to 100 chars, values up to 1000 chars

### Example

```java
package com.avara.example;

import com.avara.client.AvaraClient;
import com.avara.client.okhttp.AvaraOkHttpClient;
import com.avara.models.express.ExpressUpdateParams;
import com.avara.models.express.ExpressUpdateResponse;

public final class Main {
    private Main() {}

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

        ExpressUpdateResponse express = client.express().update("cus_1234567890abcdef1234567890abcdef");
    }
}
```