Exception Messages
Provide users with specifics about why a plug-in failed.
Exception messages are logged when exceptions are raised by plug-ins and are designed for describing the exact resort to take when plug-ins fail.
Contrary to Plug-in Documentation, Exception Messages may get very specific about a problem, such as naming items in a host relevant to the error, or point to a particular portion of the documentation.
As with Log Messages, the first line of the message is shown by default, subsequent lines are hidden until expanded and follow the same formatting rules as Plug-in Documentation.
raise ValidationError("""This is a long message
And this will appear once expanded.
""")Pro tip: It's considered good practice to include as much information as is needed here, this is where users are meant to go for specifics about what to do about a particular problem.
