Project Server - Change Enterprise Project Type with PSI

Changing Enterprise Project Type of a project in Project Server using PSI is basically the same as restarting workflow. It is actually restart of your workflow to the beginning with another Enterprise Project Type.

Post on subject restarting your workflow is here, and description of FluentPS can be found here.

First, let's see how do you change Enterprise Project Type of a project in Project Server, manually:

1. When you open one of your project, in SharePoint Ribbon you will see "Options" button and its submenu "Change Project Type". By clicking this option, you can change the existing Project Type to another one (you can select from a list of a defined Project Types). This option will always restart workflow to the first stage, to the beginning. 

 
If you need to do this automatically, this is the code:

CHANGE EPT FROM CODE:

public void ChangeEPT(Guid projectUID, string stageName, string eptName)

{

      var logService = new LogService();

      var sessionService = new PSSessionService()

      {

           HostName = "serverName", // your PWA host name

           SiteName = "pwa" // your PWA site name

      };

      PsiContextService psiContextService = new PsiContextService();

      PSISvcsFactory psiSvcsFactory = new PSISvcsFactory(sessionService, psiContextService);

      Project svcProject = psiSvcsFactory.CreateSvcClient<Project>();

 

      Workflow svcWf = psiSvcsFactory.CreateSvcClient<Workflow>();

      SPSPagesService svcPage = new SPSPagesService(sessionService);

      SPSharepointService svcSP = new SPSharepointService(sessionService, svcPage, logService);

      PSWorkflowService svcPSWf= new PSWorkflowService(logService, svcWf, svcSP);

      WorkflowDataSet workflowDS = svcWf.ReadAvailableEnterpriseProjectTypes();

      List<PSWorkflowStatus> wfStatus = svcPSWf.GetProjectWorkflowStatus(projectUID);

      //Enteprise project template UID

      Guid _eptUID = new Guid();//

      //Stage UID

      Guid _stageGuid = new Guid();

      
      //stageName - must be the first stage of your workflow
      //I haven't tried it with another stage, but it works if it is the first stage name

      for (int i = 0; i < wfStatus.Count; i++)

      {

           if (wfStatus[i].StageName == stageName)

           {

                _stageGuid = wfStatus[i].StageUid;

                break;

           }

      }

     

      //getting the enterprise project type GUID

      //here we change our Project Type with another one - its name is the parameter

      //you don't have to do this if you already know the guid of your EPT, you can 
      //just assign your guid to _eptUID variable  

      for (int i = 0; i < workflowDS.EnterpriseProjectType.Count; i++)

      {

          if (workflowDS.EnterpriseProjectType[i].ENTERPRISE_PROJECT_TYPE_NAME == eptName)

          {

                _eptUID = workflowDS.EnterpriseProjectType[i].ENTERPRISE_PROJECT_TYPE_UID;

                break;

          }

      }

           //RESTART and EPT CHANGE
      //_eptUID is the uid of our new EPT

      Guid _restartGuid = svcPSWf.SubmitStage(projectUID, _eptUID, false, _stageGuid);

     

}