Saved Search Promotions (item level) allows saved searches (versus multi-selection) of items for the promotion. This is a very efficient, flexible and fast way of attaching many items, possibly across many category parents, to promotions.
Not Available for Salesforce Integrations
Useful when you have performance issues (during the settings sync) associated with item-level promotions that have more than 300 items in the multi-select
STEP 1: Create an Item Saved Search
Base the search off any criteria.

The "results" tab must contain the field "Name" ("Id" is set by default). In addtion there must be no group functions such as "count". Failure to do this will result in no items populated for this saved search.
This will then include all the items selected in the saved search on that promotion; PLUS any items that you select in the multi-select field.
STEP 3: Ring up a sale
If any items you select are on the promotion; the promotion gets applied.
