Sender SOAP not triggering

hi,

I  am doing the scenario using the weblog

Michal's PI tips: Exchange Rates from an XML file on a web page - REST, AXIS

Once I do all development, This Sender channel not triggering or not pulling data from REST web service, it is not showing error not pulling data. How to trigger this?

i set interval =300 also

quality of service = exactly once.

regards,

Khaja.