How can I create a changes only extract?

When you create or import an extract, make sure you keep the Changes Only option selected. This option creates an extract that captures the incremental changes only and not a full extract.

The Changes Only option automatically adds the Changes Only parameter to the extract. When you run the extract, you can set the value of the parameter to capture changes. The extract generates the current status of the data, compares it with the baseline data from previous runs and identifies anything new and any modifications.

Remember that you also need to set up threading database details to fully implement the changes only behavior.