src/Workflows/Disable-XrmWorkflow.ps1

<#
    .SYNOPSIS
    Disable a workflow.

    .DESCRIPTION
    Deactivate given workflow.

    .PARAMETER XrmClient
    Xrm connector initialized to target instance. Use latest one by default. (Dataverse ServiceClient)

    .PARAMETER WorkflowReference
    Entity reference of the workflow to disable.

    .OUTPUTS
    System.Void.

    .EXAMPLE
    $wfRef = New-XrmEntityReference -LogicalName "workflow" -Id $workflowId;
    Disable-XrmWorkflow -WorkflowReference $wfRef;
#>

function Disable-XrmWorkflow {
    [CmdletBinding()]
    [OutputType([System.Void])]
    param
    (        
        [Parameter(Mandatory = $false, ValueFromPipeline)]
        [Microsoft.PowerPlatform.Dataverse.Client.ServiceClient]
        $XrmClient = $Global:XrmClient,

        [Parameter(Mandatory = $true)]
        [ValidateNotNull()]
        [Microsoft.Xrm.Sdk.EntityReference]
        $WorkflowReference
    )
    begin {
        $StopWatch = [System.Diagnostics.Stopwatch]::StartNew();
        Trace-XrmFunction -Name $MyInvocation.MyCommand.Name -Stage Start -Parameters ($MyInvocation.MyCommand.Parameters);       
    }    
    process {            
        Set-XrmRecordState -XrmClient $XrmClient -RecordReference $WorkflowReference -StateCode 0 -StatusCode 1;
    }
    end {
        $StopWatch.Stop();
        Trace-XrmFunction -Name $MyInvocation.MyCommand.Name -Stage Stop -StopWatch $StopWatch;
    }    
}

Export-ModuleMember -Function Disable-XrmWorkflow -Alias *;