Hi, we got error "The option for the SharePoint 2013 Workflow platform is not available because the workflow service is not configured on the server" for SharePoint 2013 farm when use SPD 2013. We had 2 web applications and one got no issue since we see Workflow 2013 option in the drop down selection. The other web application only show 2010 and no 2013 workflow option.
I did the followings for issue web application:
Enable-SPFeature -Identity WorkflowServiceStore -Url http://yoururl
Register-SPWorkflowService -SPSite http://portal/sites/docs -WorkflowHostUri http://portal:12291 -AllowOAuthHttp
(Restart workflow server IIS and WFE after I ran 2 above command)
In addition, I checked all required workflow installation & components they are fine and since one web application got no issue while other had issue.
What could be wrong if one web application show 2013 and the other did not show? I check workflow SSL certificate and it was not expired.
I use the below articles for my issue troubleshoot.
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/990fac21-e6a0-4786-b197-0950d2c72d70/the-option-for-the-sharepoint-2013-workflow-platform-is-not-available-at-the-site-collection?forum=sharepointcustomization
https://social.msdn.microsoft.com/Forums/en-US/e94445e6-a855-4275-ab28-130e3751a42c/sharepoint-2013-workflow-platform-is-not-available?forum=sharepointgeneral
https://social.msdn.microsoft.com/Forums/en-US/11de89e3-4ab5-45ce-9238-85ace6054e5e/the-option-for-the-sharepoint-2013-workflow-platform-is-not-available-in-sharepoint-designer?forum=sharepointgeneral
Thanks
Tee