TIMEZONE_LOCKEDTimezone Cannot Be Changed

Once an ad account's timezone is set, it cannot be changed. TikTok locks the timezone after the account starts spending to maintain consistent reporting.

What causes this error?

Once an ad account’s timezone is set, it cannot be changed. TikTok locks the timezone after the account starts spending to maintain consistent reporting.

How to fix it

If you need a different timezone, you’ll need to create a new ad account with the correct timezone setting. Plan this carefully before launching your first campaign.