

Hi,
Thank you for reaching out to the Google Ads API support team.
As per provided information, I understand that you copy a string with a length of 30 into headlines while creating ads but it exceeds the length limit of headlines. If you create ads using different languages, please be aware that the character limit may vary. Kindly note that for languages that use double-width characters like Chinese ,Japanese or Korean can contain the 12 characters in the Headline and 17 characters in each line of ad text. I would recommend you to go through this Campaigns Text ads help center article for more detailed information.
![]() |
Google Ads API Team |