PIXEL_NOT_FOUND Pixel Not Found

The TikTok Pixel ID referenced in your ad group or conversion event doesn't exist or doesn't belong to the advertiser account you're working with.

What causes this error?

The TikTok Pixel ID referenced in your ad group or conversion event doesn’t exist or doesn’t belong to the advertiser account you’re working with.

How to fix it

1. Verify the Pixel ID: Go to TikTok Ads Manager → Assets → Events and confirm the Pixel ID.
2. Check account ownership: The pixel must belong to the same advertiser account as the ad group.
3. Re-create if needed: If the pixel was deleted, create a new one and update your ad groups.