Common errors when connecting Meta and TikTok ad accounts and how to resolve them.
Your Facebook account needs to be an Admin of the Business Manager that owns the ad account. Log into Business Manager (business.facebook.com), go to Users → People, verify your account shows as Admin. If you are an Employee, ask the Admin to re-authorize the connection or elevate your permissions.
The ad account may be in a different Business Manager than the one you authorized. Settings → Integrations → Meta → Reauthorize. When the OAuth window appears, select the correct Business Manager from the dropdown before approving.
This is a TikTok Business Center configuration issue. In TikTok Business Center → My Apps → Lead Gen AI Suite → Edit → ensure the Redirect URI matches exactly: https://app.leadgenai.com/oauth/tiktok/callback. No trailing slash, exact case.
The ad account has been flagged or disabled by Meta/TikTok. This must be resolved directly with the ad platform — the Lead Gen AI Suite platform cannot re-enable disabled accounts. Go to Meta Business Support or TikTok Ads support, submit an appeal, and reconnect after re-activation.