Hi Ilya,
Thank you for reaching out. The Google Ads API does support bulk upload of user data but it does not provide the CSV files upload based on its design as the API needs to validate the input rather than just upload whatever is in the file. If you need to do so, you would have to use the Google Ads UI or Google Analytics to achieve it. As for the bulk uploads of user lists in the Google Ads Scripts, you could post your concerns on the Google Ads Scripts forum and they would provide you more information about the feasibility of doing so via the Google Ads Script.
Thanks and regards,
Xiaoming, Google Ads API Team
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| Xiaoming |
| Google Ads API Team |
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