If needed, you can clean the names of the columns in your dataset. When column names are sanitized:
_) are permitted
Although supports a wider range of characters, you may wish to sanitize your column names to simplify publishing to and import into downstream systems.
The above sanitization can be applied to your column names when the dataset is imported.
Tip: If you notice issues with references to your column names in your recipes, you may be able to fix them by re-importing the dataset and choosing to sanitize during import.
For more information, see Import Data Page.
Through the Transform Builder, you can add a step to sanitize column names in your recipe.
Tip: If you are sanitizing your column names for downstream systems, you should add this step at the end of your recipe.
You can perform more fine-grained column renaming operations. See Rename Columns.