Microsoft Advertising Makes Changes To How Broad-Match Modifier Keywords Serve by Laurie Sullivan , Staff Writer @lauriesullivan, March 15, 2023 Microsoft Advertising will change the way broad match modifier (BMM) keywords are served for search ads, starting today. The company has been working to improve the algorithmic performance of broad match. BMM keywords previously served as … Continue reading Microsoft Advertising Makes Changes To How Broad-Match Modifier Keywords Serve →