To benefit ad performance and simplify ad account structure, TikTok implements ad account limits. We recommend focusing on existing ad groups and diversifying them to give your ad groups the highest chance of reaching stable performance and improving their overall average lifespan.

To diversify ad groups:

• Refresh creatives with Creative Best Practices.

• Leverage tools like automatic targeting, targeting expansion, and lookalike audiences to broaden targeting.

• Increase your CPA bid or lower your Minimum ROAS bid to win more auctions.

• Implement Auction Ads Best Practices to increase your budget for Lowest Cost or Highest Value ad groups.

To work with your base quota:

• Review base quota according to the tier level.

• Pause or delete low-spending ad groups if approaching the base quota limit.

• Focus on existing ad groups and diversify according to TikTok's Auction Ads best practices.

• Use Automated Rules to pause underperforming ad groups and to stay within quota limits.