Select a specific Wave Summary you'd like revised as outlined in Modifying Automated Wave Summaries: Basic
Scrolling below Execution Days, you'll see Advanced Filters:
Click Advanced Filters to reveal a series of specific criteria you can apply to a Wave Summary that orders must meet in order to be included in that Summary:
Some examples of filters you can apply from the list above are:
"Only batch orders with 1 day time in transit"
"Only batch orders shipping via UPS"
"Only batch orders that include SKU: 'PIZZA_1'"
"Only batch orders tagged 'Priority' in our OMS"
In the example below, we've applied a filter to only include orders that have been assigned to ship in a Medium box:
Note: when adding an advanced filter to a Wave Summary, remember to click Apply [x] Filters, and then click Save.