Public/Get-GCExternalContact.ps1

<#
.SYNOPSIS
    Retrieves a single external contact by ID.

.DESCRIPTION
    Returns the details of a specific external contact from Genesys Cloud.
    Uses the GET /api/v2/externalcontacts/contacts/{contactId} endpoint.

.PARAMETER ContactId
    The unique identifier of the external contact to retrieve.

.EXAMPLE
    Get-GCExternalContact -ContactId 'a1b2c3d4-e5f6-7890-abcd-ef1234567890'

.NOTES
    Genesys Cloud API: GET /api/v2/externalcontacts/contacts/{contactId}
#>

function Get-GCExternalContact {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true)]
        [string]$ContactId
    )

    $endpoint = "externalcontacts/contacts/$ContactId"
    return Invoke-GCApiRequest -Endpoint $endpoint -Method GET
}