You can choose how Data Integration responds when it encounters a mismatch between a file and the selected schema.
When you run a mapping through a mapping task, you can configure an advanced option that specifies how Data Integration handles mismatched schemas:
•Skip mismatched files and continue. When Data Integration finds a schema mismatch, it stops searching for other errors in the same file and writes that error to the log. Data Integration doesn't process any other records from that file and continues with the next file.
•Stop on first mismatched file. Data Integration stops all processing when it finds a schema mismatch error, and it writes the error to the log. Data Integration does not roll backfiles processed before the error was found, and it doesn't process the file containing the error.
When you run a mapping in the Mapping Designer, Data Integration evaluates every file and skips the entire file when it encounters a schema mismatch.
Schema mismatch handling doesn't apply to mapping tasks that are based on mappings in SQL ELT mode.