I haven't noticed this before! We've created a new checkbox on customers. And as it is a new field the value for all existing customers will be null. But during the night a workflow kicked in and updated all customers with "F" for that new field. The change is visible in system notes and the lastmodified field has been updated aswell. Is this a new "feature" by Netsuite? Or have you seen this before? (I don't think anyone has created a workflow and then deleted it, but that could be it as well)