The Big Picture of System Messages

All error, warning and informational messages that are displayed in the system are maintained on the message table. Every message is identified by a combination of two fields:

Every message has two components: a brief text message and a long description. On the Main tab, you can only maintain the brief message. If you need to update a message's long description, you must display the message on the Details tab.

Note: You cannot change the product’s text. If the message is "owned" by the product, you cannot change the product’s message or detailed description. If you want your users to see a different message or detailed description other than that supplied by the product, display the message on the Details tab and enter your desired verbiage in the "customer specific" fields (and flush the cache).