MM Release Strategy and Workflow settings

Dear friends ,

I have a doubt regarding workflow message in MM Release Strategy.

When we creates the Release Strategy to PO we set value 1 to release estrategies to use workflow.

And we give user name t this strategy.

But must I set something more ?

Does anyone could explain the customizing to use it in MM ? the MM team should configure something in Workflow to message be sent to approver ?

best regards,

Ale