There are a couple of ways to do that, e.g.:

Use UserApplication (see "Reassigning a Task")

Use iManager (see "Reassigning a Workflow Instance")


Use User Application and access the unavailable manager as proxy or with
"Manage User"


On 22/05/2018 12:54, Agnel Vincent wrote:
> Hi Guys,
> I trying to change the Manager of a request once the request is
> submitted successfully.
> The request may be pending with Manager who is not be available at the
> moment.
> Is there a way user can change the approver to someone else?
> Thanks in Advance,
> Agnel