Some times, you will need to notice in your custom extensions (frontend or backend), any kind of succeed, or an error. To do so, let’s use the standard Magento notification system flash messages, as follows:

• Success
  
  1	Mage::getSingleton('core/session')->addSuccess('Success message');

• Notice
  
  1	Mage::getSingleton('core/session')->addNotice('Notice message');

• Error
  
  1	Mage::getSingleton('core/session')->addError('ERROR message');

• Warning
  
  1	Mage::getSingleton('core/session')->addWarning('WARNING message');