Workflow Manager with Project Server error Exception Starting Workflow: The value for column _WORKFLOW_INSTANCE_UID_ in table _WorkflowInstance_ is DBNull RRS feed

  • Question

  • Hello,

    The project server workflows were running fine on my servers (2 App and 2 WFE). suddenly workflows are not working anymore.

    and I am getting the below error:

    • DBNull.. Trace: at Microsoft.Office.Project.Server.Schema.WorkflowDataSet.WorkflowInstanceRow.get_WORKFLOW_INSTANCE_UID() at Microsoft.Office.Project.Server.BusinessLayer.Workflow.StartWorkflow(Guid projectGuid, Guid enterpriseProjectTypeUid, Boolean isNewProject, Guid previousEntepriseProjectTypeUid, Boolean skipStage, Guid stageToSkipTo):
      • WorkflowExceptionStartingWorkflow (35115). Details: id='35115' name='WorkflowExceptionStartingWorkflow' uid='047a6f2d-8a44-e411-8bf4-0050568b37eb'.

    I checked all DBs; all running fine. Also I tried to re-register the workflow with my site collection. but nothing worked.

    Any suggestions?

    Twitter : @MShoubaki |

    Thursday, September 25, 2014 8:39 AM


All replies

  • Any chance you installed any updates recently?  I just started to get this error this afternoon and there were problems installing Windows Updates (SharePoint) this morning.  

    I am running SharePoint & Project Server 2013.  

    Friday, September 26, 2014 5:51 PM
  • I upgraded to SP1 last week, but not sure if it is the reason.

    Twitter : @MShoubaki |

    • Proposed as answer by A Bauman Tuesday, September 30, 2014 3:16 PM
    • Unproposed as answer by A Bauman Tuesday, September 30, 2014 3:16 PM
    Saturday, September 27, 2014 3:57 PM
  • Were you able to process any workflows after the upgrade?  I think it is related to patches that I am having the issue.  
    Monday, September 29, 2014 1:05 PM
  • Hi Mohammad, 

    I was able to resolve my issue by installing KB2880963.  I did not have any of the other updates mentioned installed, but it did resolve the issue. 

    Note: I did need to restart my servers.  

    See Below from 

    Here is the security update which you will need to install.

    Update 2880963 for SharePoint Server 2013

    Chcek the link for details.

    • Proposed as answer by A Bauman Tuesday, September 30, 2014 3:18 PM
    • Marked as answer by Mohammad Shobaki Sunday, October 26, 2014 7:08 AM
    Tuesday, September 30, 2014 3:18 PM
  • Update 2880963 fixed the issue... but what I don't understand, that my SharePoint 2013 & Project Server 2013 where completely updated with all available Downloads (until June 2016).

    Do not forget to launch the "SharePoint 2013 Products Configuration Wizard", after "success" I restarted the Server and now the "2013-Project Server" Workflows are starting.


    Wednesday, June 24, 2015 3:39 PM