Microsoft last month extended the deadline for the migration from standard ads into Expanded Text Ads (EXTAs). The deadline was December 2019, but Microsoft extended to 31 March 2020. Standard ads will no longer serve after the deadline.
Expanded Text Ads (EXTAs) were launched in March 2017. According to Microsoft, Expanded Text Ads help advertisers create larger and more engaging ads.
Current standard text ads can’t be edited. Microsoft Editor tool enables advertisers to migrate to Expanded Text Ads in bulk.