Hi @RobinSilk, Here's how to set up the dependent list filter so that you exclude previously selected list items. First you will need to set up a Selection Criteria list and add Yes or No to that list. Then set up 3 staging line items in your module. One with the selection criteria set to no, another staging line item to determine which items have been selected, and then finally a line item that determines if the item has ever been selected. The summary method for the Package Selected Staging should be First-non blank and the formula for Package Selected? is: Add a Filter Driver Property to the dropdown list and set the formula to be the Package Selected? line item: Finally, set up the dependent dropdown on your picklist and you should be good to go: Results:
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