Via a blog post,  Microsoft Advertising announced that they will be deprecating the Accelerated budget strategy starting on November 1, 2019, this change will affect the budget strategy for the Search, Shopping and Dynamic Search Ads campaigns, from that day the campaigns that were using the Accelerated budget strategy will start serving as Standard.

 Microsoft said that the Standard budget strategy campaigns is a “smarter instrument” because it has the ability to choose the time to serve the ad based on multiple factors as the products and services targeted by your campaign, and availability of corresponding search during the day, optimizing your campaign performance.