Monday, January 28, 2013

How to Start a SharePoint Workflow using PowerShell

Requirement is: To start a specific Workflow on All documents in a document library.

Solution: Lets use PowerShell to Start workflow Programmatically on all Items in a Document Library! After making sure, Manual start is enabled for the workflow:

# For MOSS 2007 compatibility
[void][System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint")

#Region MOSS2007-CmdLets
Function global:Get-SPSite()
{
  Param( [Parameter(Mandatory=$true)] [string]$SiteCollURL )

   if($SiteCollURL -ne '')
    {
    return new-Object Microsoft.SharePoint.SPSite($SiteCollURL)
   }
}
 
Function global:Get-SPWeb()
{
 Param( [Parameter(Mandatory=$true)] [string]$SiteURL )
  $site = Get-SPSite($SiteURL)
        if($site -ne $null)
            {
               $web=$site.OpenWeb();
            }
    return $web
}
#EndRegion

#Get the Web
$web = Get-SPWeb "http://sharepoint.company.com"

#Get the List
$list=$web.Lists["Review Documents"]

#Get Workflow Manager
$WFManager=$Web.site.WorkFlowManager

#Get the specifi workflow, Associated with the list
$WFAssociation = $list.WorkFlowAssociations | where {$_.Name -eq "Approval Workflow"}

#Start Workflow on Each List Item
foreach ($item in $list.Items)
  {
    $WFManager.StartWorkFlow($item,$WFAssociation,$WFAssociation.AssociationData)
    write-host "Started Workflow on $($item.Name)"
  }
$web.Dispose()
Using this method, We can Start/Stop/Cancel even Nintex Workflows!



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2 comments :

  1. Exception calling "StartWofkflow" with "3" argument(s): "Unable to synchronously deliver start event via a manual start workflow.: $$WFManager.StartWorkflow($item......

    ReplyDelete
    Replies
    1. Try adding the user who runs this code with "FULL Control" access rights to the site!

      Delete

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