I am having trouble adding external SharePoint user to an item using the Nintex Action "Office 365 update item permissions"
I can add the external user manually in the item permission and it works fine.
I can add an internal user using that Nintex Action and it works fine.
But if I enter the external user, as format "firstname.lastname@example.org", the workflow returns
Failed to resolve user 'i:email@example.com'
Has anybody tried to add external users using this action ?