You might encounter an error while trying to publish workflows with an ‘Email Step’ added
Error: “An error occurred when the workflow was being created. Try to save the workflow again.”
The CRM logs show the error as
“Type System.Globalization.CultureInfo is not marked as safe … in web.config”
Here is the resolution
Add the below entry into the web.config file available in the CRM installation directory
Eg : c:\program files\microsoft dynamics crm\crmweb
Try publishing the workflow again. That should work 🙂 !!