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Not looking to display form validation errors, but more global messages like "Hurry quick -- offer ends in 4 hours" or "Currently there are 3 users online".

The question is not about how to generate the messages, but how to best present them in a way that will work nicely in any (or at least most) themes.

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4

You can use the Magento notification system. It should work anywhere anytime.

Notice

Mage::getSingleton(‘core/session’)->addNotice(‘Notice message’);

Success

Mage::getSingleton(‘core/session’)->addSuccess(‘Success message’);

Error

Mage::getSingleton(‘core/session’)->addError(‘Error message’); 

Mage::getSingleton(‘adminhtml/session’)->addWarning(‘Warning message’);

(Admin only)

If this is not what you are looking for but the block in charge of displaying these messages, you need the message block.

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3
  • Thanks for this. Problem with the above is that the message sometimes isn't visible until the next click. Any way around that?
    – fris
    Commented Jul 7, 2015 at 8:27
  • Where are you setting the messages? If you set the message in a PHTML it will be shown on the next refresh, you should set it in a controller.
    – mbalparda
    Commented Jul 7, 2015 at 13:27
  • Not always possible to set all messages in the controller. I output them as they come up, e.g. when an error condition arises (like an Exception).
    – fris
    Commented Jul 9, 2015 at 8:28

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