Hi Kiran,
actually there is no standard workflow, at least from SAP's point of view. We deliver multiple workflow templates to give you basic ideas what you could do - and sometimes what you have to do - w.r.t. to workflows and related processes.
Still the workflow has to fit to your customer's needs. The tool itself is very flexible so that you can design and model a workflow that exactly fulfills the customer's requirements and that includes in special circumstances mandatory or strictly recommended steps by SAP.
So if you do not want to use WS72100012, but you want to use IDOc based replication on MDG-F hierarchies, you should include the tasks of WS72100012 being responsible for the replication in your custom template. Otherwise the replication might fail.
Best regards
Michael