TikTok connection problems usually come from interrupted login approval, missing business setup, or an account that needs to be reconnected from scratch.
Most TikTok failures are caused by cancelled approval screens, an account that needs business tools enabled, or an older connection that was broken and now needs a full reconnect.
If the TikTok window is closed or interrupted, the account will not connect even if the first step looked successful.
Connecting requires a TikTok Business account with the profile setup completed.
If the account was previously connected and later lost access, repeated retries may not help until you reconnect it from scratch.
This usually means the approval step did not complete cleanly, or the account is not ready for the feature you are trying to use.