How to bulk delete Content Type based workflow associations from a list

[aaron_labiosa]

Products: Nintex Workflow 2013, Nintex Workflow 2010

Today a request came in to assist in removing 9,000~ duplicate Content Type Workflow Associations from a list (previous versions). Since it did not matter whether or not any workflow associations for that content type remained on the list (it is easy enough to re-add the workflow after) this script was developed to remove all workflow associations for that content type.

Note: All other content type workflows (other content types) and regular list based workflows will remain unmodified.

Run the below (attached as well as a *.txt file for your convenience) PowerShell script (PowerShell ISE works well) from a SharePoint Server:

PowerShell Script
Add-PSSnapin microsoft.sharepoint.powershell $(Get-SPWeb http://contoso.com).lists["YourListTitle"].ContentTypes["YourContentTypeName"].WorkflowAssociations | ForEach-Object {$(Get-SPWeb http://contoso.com).lists["YourListTitle"].ContentTypes["YourContentTypeName"].RemoveWorkflowAssociation($_)}

To use the script do the following:

• Replace http://contoso.com with the URL of the site you wish to execute the script against.
• Replace YourListTitle with the title of the list/library you wish to execute the script against.
• Replace YourContentTypeName with the name of the content type the workflow is attached to.

Delete-ContentTypeWorkflowAssociations.zip