Hi Shingo,
Thanks for reaching out. If you have set an account level budget then you could call the BudgetOrderService.get() to retrieve the spendingLimit of the budget order. Please let me know if you have any further concerns.
Thanks and regards,
Xiaoming, Google Ads API Team
Hi Shingo,
You could query the Cost field from the Account Performance Report and use query similar to the following query to do so:
SELECT AccountDescriptiveName, Cost, AccountCurrencyCode
FROM ACCOUNT_PERFORMANCE_REPORT
DURING LAST_7_DAYS
You could refer to this code example on how to query a report by making service calls. Please let me know if you have any further concerns.
Thanks and regards,
Xiaoming, Google Ads API Team