When it's the best time to launch a campaign?

NO FRIDAY rule

We recommend not launching campaigns on Fridays or the last day before the Holiday, especially at the end of the workday. The campaign must be optimized and checked even more often during the first days of the campaign and on non-working days there might be no one there to help.

If you want to launch a campaign at weekend, make sure that all material is uploaded to the system by Thursday evening.

 Plan some TIME FOR TESTING

If you are planning a CPA campaign, use tracking or launching your first TAG campaign, make sure that there is enough time before launch for testing. It takes around 1-2 working days to test and to fix bugs.