Hi Yair,
Thank you for reaching out. As mentioned in
this guide, all requests to Keyword Planning services for both standard and basic access are rate limited. For Keyword Planning services, the limit is one query per second.
The daily limit of requests depends on the access level of the developer token. You can refer to
this documentation for more information.
The value of 2500 in the screenshot you provided is the maximum value allowed per KeywordPlan per account.
Let me know if you have any additional questions.
Thanks,
Danica Calusin, Google Ads API Team

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