Due to an expired certificate on our Workflow site it seems that we need to uninstall and reinstall the Workflow manager. https://social.technet.microsoft.com/Forums/en-US/d935d8df-9de1-4d7f-9937-6e811b24b472/sharepoint-2013-workflow-manager-now-has-expired-certificate?forum=sharepointadmin Nowhere though can I find anything about the impact of doing this. ie) does this remove any existing workflows? What if we have a custom Action in one of our Workflows? Also, I asked in a separate question - how do I tell which CU I have on my Workflow manager? Does this have any impact on any other Sharepoint services? I can see my build-number but don't have a resource that tells me which build-number matches which CU. Thank you,

2 Answers 2


It does not remove existing workflows as those are already in the workflow manager databases. You will re-use your existing databases when creating the new WFM farm. You should use Copy-SPActivitiesToWorkflowService once you've bound WFM back to SharePoint.


We had to do the same thing in our company last week - with no errors. Just be sure to backup all Workflow Manager DataBases and then restore them.

For the Custom Activity I agree with Trevor.

For the Build Number, I already answered your second question HERE

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.