Hi Romar,
Thank you for reaching out. The InvoiceService.ListInvoices() does not support the monthly spend retrieval on the campaign level. The alternative way to do it is to query the metrics.cost_micros field from the campaign resource and set the date range to be a monthly range. Please let me know if you have any further questions.
Thanks and regards,
Xiaoming, Google Ads API Team
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Google Ads API Team |