Hi,
To further investigate this, could you provide the complete SOAP request
and response logs when you encountered the StringLengthError error that you
mentioned when you uploaded the ResponsiveSearchAd? Please reply via *Reply
privately to author*.
Thanks and regards,
Luis
AdWords API Team
For many years, we have HTML Encoded the various text elements (e.g.
headline, description) of ads. It's been many years, so I don't recall
which characters caused issues, but I do recall that the HTML Encoding
allowed characters to be uploaded through the API that otherwise caused
errors.