Unable to Sync mailbox with list (Shared mailbox)

Hi,
I am trying to achieve syncing of SharePoint Office 365 mailbox to a List in SharePoint site.Shared mailbox id is SMO-testsite@abc.onmicrosoft.com. I am using custom action “Sync e-mail to list ( AdminLogin AdminPassword ) ” which is syncing custom action for shared mail box. I had entered my shared email mail box id and list name with all details. I get an error “Exception: Value cannot be null.” when I run the workflow.
I was able successfully able to sync exchange with the list but I am facing problem while syncing SharePoint 2013 online mailbox with list. How can I achieve this?

Thanks for letting us know about the issue. We’ve fixed it.

I am experiencing the same issue with Shared Mailbox, Exception: Value cannot be null.
What was the solution?

SteveFox3409

Could you please send a screenshot of your workflow (without sensitive) to support@plumsail.com