How can I handle errors in called procedures or functions when my main procedure's error handler isn't catching them?

Error handling needs to be present in the procedure where the error originates. If the error occurs in a called procedure, it must have its own error handler. Alternatively, you can propagate the error back to the calling procedure by using `Err.Raise` from within the called procedure to re-raise the error, making it visible to the caller's error handler, or use `Resume [LineLabel]` after the `Err.Raise` to continue execution.