Step Handlers - Synchronization Service

Question

Does anyone know how to use step handlers? The documentation barely even talks about them and no examples are given. 
 
 I would like to take data from srcobj or dstobj and perform actions pre or post run. Is this not doable. In what forms are step handlers useful then?

Terrance.Crombie · Answer

The simplest use-case that I've seen for a Step Handler is with a CSV file, using PowerShell in a Step Handler to get a remote copy of a CSV and put it locally, for isolation and latency purposes. 
 You could also use it to create a VPN for access to a specific resource, or to query a connected system for information that is needed later on in a Workflow. 
 It's not a commonly-used feature, certainly, but there is sometimes the need for pre- and post- operation tasks.