Workflow Notification mailer issue

Issue :

Workflow Differed Job got filled so the workflow notification mailer couldn't send mail.

Solution :

I saw the particular user mail status in that all status was shows expired.

So I submitted "Move Messages from Exception to Normal Queue of Workflow 

Agent" concurrent request. It will ask parameters then we need to give 

WF component name in my case I was given WF_NOTIFICATION_OUT.

Reference:

1. Howto Move Notifications From Exception Queue To Normal Queue?ID472204.1

2. FNDWF_MOVE_MSGS_EXCEP2NORMAL "The agent is not found"[ID 760983.1]

3. Error APP-FND-1030 Is Displayed When Trying To Submit "Move messages 

from Exception to Normal Queue of Workflow Agent" FNDWF_MOVE_MSGS

_EXCEP2NORMAL [ID 1451820.1]

For Enabling De-Queue we need run below procedure,

exec dbms_aqadm.start_queue(

queue_name=>'APPLSYS.AQ$_WF_NOTIFICATION_OUT_E',dequeue=>TRUE,

enqueue=>FALSE)

Regards,

Vijay.