Forum Discussion
While it may be frustrating that you can't get rid of all Warnings, you can Suppress them. If you right-click on a Warning, you can select "Suppress" and then you have the option of suppressing that exact message, or all similar messages. When you suppress messages, they now show up under the Suppressed tab in the Messages window, but no longer show up under the Processing tab. So, in effect you can filter the ones you don't want to see that you know about out so that only new Warnings, or the ones you might care about show up. Conversely, if you are looking through all your Warnings and you see one that you know you have to deal with, but don't have time right now, you can Flag it (right-click on the Warning and select Flag) and it will go to the Flag tab. Then, later on you can address those Warnings that you flagged.