When syncing a Data Source, you may have the option to add in additional configuration sections, such as a Filter, under the "Add a Section" drop down tab in the Connection Experience (Image 1).
Image 1: Adding a Filter
A filter on your source is optional. It relies on a source specific syntax for filtering out records from your source target. The filter can reference execution parameters.
This is only available if using a table, not a query. For queries, include the filter in the query itself.
Example 1: Using a filter to sync only source records with [net worth] > 100000
Example 2: Using a filter to sync only source records with a status like "Complete"