If you do not want a specific campaign, ad group, or ad in your TikTok Ads Manager account, you can delete it.
To delete a campaign, ad group or ad:
Go to the Campaigns page in TikTok Ads Manager.
Click the Campaign, Ad Group, or Ad tab.
Select the campaigns, ad groups, or ads you want to delete.
Click the Edit button.
Select Delete from the left side.

Deleted campaigns won't be displayed on your account and can't be restored.