What can happen if invalid values are encountered in named input?

Invalid values encountered in named input can indeed lead to errors during data import. When SAS processes data, it expects values to conform to specified formats and types. If the data does not match these expectations—such as encountering a string where a number is expected—it can trigger an error. This is particularly critical during the import process where the integrity and accuracy of the dataset are essential.

When an error occurs, it often prevents the data step from completing successfully, requiring the programmer to resolve these issues before the data can be processed accurately. This emphasizes the importance of validating and cleaning the data prior to import to minimize the risk of such errors occurring.

Other options might suggest different consequences of invalid values, but they do not accurately describe the severity of the situation encountered during data import in SAS. Knowing how to identify and manage these errors effectively is crucial for successful SAS programming and data manipulation.