I tried ald, when the Admintask "PortalPortal Change Account Password" set with workflow,
the result is that the approval request appear in IDM UI only. It does not appear in IdentityPortal.
*Note that, when we Change Password on an EndPoint account, it does not generate any request into "My Request".
IdentityPortal just fire the request directly into IDM.
The EndPoint->Change Password, Unlock/Resume/Suspend, is executed with build in form.
This form does not appear in Identity Portal management console.