[null,null,["อัปเดตล่าสุด 2025-08-21 UTC"],[],["Test networks offer isolated environments for testing code without affecting production accounts. Create one test network per Google account using `NetworkService.makeTestNetwork`, referencing client library examples. Service accounts require an added Administrator via `UserService.createUsers` for UI access. Test networks have limitations: 10,000 objects per entity, no ad serving, empty reports, faked forecasts, and lack of Ad Manager 360 premium features. Use these isolated test environments prior to using your production account.\n"],null,[]]