More:
Error handling and status communication
When to log, and when to use the UserMessageCollector?
Recommended methods of the UserMessageCollector
Outdated methods of UserMessageCollector
Methods of the UserMessageCollector no longer supported
Passing information to model developer and user
Checking for errors using the UserMessageCollector
Abort scripts using the AbortExecutionIfErrorCommand
Query the global resource path in scripts
Change parameter result to literal formula
Lexicographic sorting of strings with proper treatment of numbers