From any previous trigger it would be very useful to create a document set from a template. currently we need to drop out of flow and use Nintex to complete this part of the workflow.. Please Please Please add this soon
Sharepoint 2010 workflows seem to be the only way to create a Document Set automatically (SharePoint 2013 workflows CANNOT create Document Sets - they pretend to, but actually create broken folders with an incorrect Content Type).
Given that Flow also cannot initiate SharePoint workflows (wth not, given there's clearly things that SharePoint workflows can do that Flow can't?) there is, I think, a dirty hack that can fill the gap.
Create a SharePoint list that contains the columns that you need to pass to the new Document Set.
Create a SharePoint 2010 workflow that triggers on the creation of a new item in that SharePoint list. On creation of an item, configure that workflow to create the Document Set with all the attributes set in that list item.
Configure your Flow to create the requisite item in that SharePoint list (which will then trigger the SharePoint 2010 workflow which will then create your SharePoint document set).
Seems to be a pretty yucky but no reason to think it shouldn't do the trick.
Microsoft, Please modernize faster. Basic functionality like document set content types have been in the SharePoint product for many years... I don't understand why Flow cannot create Doc Set content types in SharePoint Online. This is needed...really.