Every time an action that requires loading time is performed (such as opening a connector or loading a collection) an Animated Loader 
will appear at the bottom of the selected card to indicate the operation is still in progress. After the operation is finished, the DTS UI will display, depending on the operation's success, a message, a warning or an error on the bottom right hand corner of the screen.
Successful operation message example
Error message example
Info message example
The messages will disappear after a few seconds. If you have multiple operations running at the same time, the messages will stack.
Message stack
In case of an error, the corresponding card that triggered the operation will be highlighted in red. The Error Button 
will also appear on the card .
To view the error message again, click on the error button. The message will appear again on the bottom right hand corner of the screen.
To view more specific details about an error , simply click on the error message on the bottom right hand corner of the screen.
An alert message will appear at the top of the screen containing detailed information.
To close the alert, click OK.
Card with error
Error details alert