To delete treatment rules
You can delete treatment rules you no longer need. You can open the menus by clicking the segment or offer. Deleting all the rules for a segment also removes the segment from the treatment rules table.
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Click the Edit Strategy icon to enter edit mode.
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Click an offer and select Delete all Rules Involving this Offer.
Click a segment and select Delete all Rules for this Segment.
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When you are finished deleting treatment rules, click Save to save your changes and remain in edit mode, or Save and Exit to save your changes and return to view-only mode.