## Create

`ExpressCreateResponse Express.Create(ExpressCreateParamsparameters, CancellationTokencancellationToken = default)`

**post** `/v1/express`

Creates a new customer with a unique identifier and name. Customers can be used to group and manage users, studies, and access permissions across the Avara platform.

### Parameters

- `ExpressCreateParams parameters`

  - `required string expressCustomerName`

    Name of the Express customer to create

  - `IReadOnlyDictionary<string, string> metadata`

    Custom key-value metadata for the Express customer. Maximum 50 pairs

### Returns

- `class ExpressCreateResponse:`

  An Express customer entity that groups users and studies

  - `required DateTimeOffset? CreatedAt`

    Timestamp when the Express customer was created

  - `required string ExpressCustomerID`

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

  - `required string ExpressCustomerName`

    Name of the Express customer

  - `required Boolean IsActive`

    Whether the Express customer is currently active

  - `required DateTimeOffset? UpdatedAt`

    Timestamp when the Express customer was last updated

  - `required Long UserCount`

    Number of users currently in this Express customer

  - `string CreatedByApiKeyID`

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

  - `string CreatedByUserID`

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

  - `IReadOnlyDictionary<string, string> Metadata`

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

### Example

```csharp
ExpressCreateParams parameters = new()
{
    ExpressCustomerName = "City Medical Center - Radiology Department"
};

var express = await client.Express.Create(parameters);

Console.WriteLine(express);
```