Google would allow advertisers to use up to 90 characters for description in text ads, which is equal to that of responsive search ads. In total, text ads can now have up to three headlines and two descriptions.
Text ads has three parts: headline text, a display URL, and description text.
Headline
Text ad has three headlines where you can write up to 30 characters each to promote your product or service. The headlines are separate and may appear differently based on the device someone is using when they view your ad.
