A Filter widget element is a pass-through element that takes input data, makes a specific decision about the data and the possible transformation of it, and then passes it on to the following widget. Usually, a filter has no input/output operation on its own, and it depends upon input from another source.
In Data Journeys, you can use triggers or actions as the input source for the filters. The A/B Split and % Split filters are used to create multiple groups to distribute contacts.
% Split
The % Split filter enables you to split into a group of minimum 10% and a maximum of 50%. The filter has pre-defined percentage selections – 10%, 20%, 25%, and 50%. You cannot set the percentage manually in the element.
The following screenshot shows how the % Split widget appears on the canvas:

The following screenshot shows the Percentage Split dialog box that appears when you double-click the widget:

A/B Split
The A/B Split filter enables you to create groups and assign percentages manually. Unlike % Split, you can add groups and can assign a minimum of 1% in this widget.
The following screenshot shows how the A/B Split widget appears on the canvas:

The following screenshot shows the A/B Split dialog box that appears when you double-click the widget:

On the widget dialog box, click the Add Group button. Enter names for the groups and assign the appropriate value percentage.