This Condition located on the Miscellaneous category tab in Search Builder allows you to select one or more Saved Searches to create a new search. You can select one of your own searches or a Saved Search that is Public even if it is not one of your searches.
Make sure you know exactly what the saved search contains, especially if the search belongs to another user. It’s possible that they have changed a Condition in the search since you last ran it.
That is why we do not recommend that you save a search that uses the Condition Saved Search. You should always build these fresh in case the saved search has changed.
When you select this Condition, you will have a dropdown menu from which to select a Saved Search. If it is your search, your username will precede the name of the search; if it belongs to someone else and is public, it will have that person’s username before the name of the search. Example: karenw:Visitors; johnd:Absent Members.
Be sure to pay attention to the Comparison especially if you are adding more than one Saved Search. If you select All True, that means that your results will be only those who fit the criteria for the Conditions in BOTH (or all, if you add more than 2) of your Saved Searches. If you select Any True, your results will be those who fit the Conditions in EITHER (or any) of your Saved Searches.