Regex for KEYWORD_HAS_INVALID_CHARS error

[Christian Kolb]

Hello!

Is it possible for the AdWords API Team to provide the Regular Expression that Google uses for validating if a keyword contains invalid chars (and thus would trigger the KEYWORD_HAS_INVALID_CHARS error)? That would be really helpful, for a couple of reasons: 

1. The official documentation does not help in this regard because the statement "Invalid symbols: You'll see an error message if you add negative keywords that contain certain symbols. Some of the symbols that can't be used in your negative keywords are: , ! @ % ^ () = {} ; ~ ` <> ? \ |." ( as stated here https://support.google.com/google-ads/answer/2453972?hl=en) is too shallow.
2. Trying out all Unicode ranges for having a definite list of all invalid characters would be possible, but is cumbersome. 

Since my post is not the first one referring to this topic (see here and here), I am optimistic that there is a need for this Regular Expression.

[Google Ads API Forum Advisor Prod]

Hi Christian,

Thank you for reaching out. I have put in a request for this with my team so please keep an eye on our Developer Blog for information on future releases.

Regards,
Mitchell
Google Ads API Team

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[Ronald Findling]

Dear Mitchell,

so how are we supposed to know if a keyword will be valid (from the character perspective)?

Best Regards,

Ronald Findling