This article explains the most common errors you may encounter while syncing Ad Audiences to Facebook (Meta), Google Ads, and TikTok Ads, along with the actions required to resolve them.
Some errors are platform-specific, while others can occur across multiple ad platforms. Each section clearly indicates where the error may appear.
Authentication and Authorization Errors
Access Token Expired, or Authentication Failed
This error means the access token used to connect your ad account has expired or is no longer valid. Insider One cannot authenticate with the ad platform.
To solve this issue:
Go to Integration Settings.
Reconnect your ad account.
Complete the login and authorization flow again.
This solution is available for:
Facebook Ads
Google Ads
TikTok Ads
Not Authorized to Access Ad Account
This error means the connected user does not have sufficient permissions to access or manage the ad account.
To solve this issue:
Ensure the user has the required role:
Facebook: Admin or Advertiser
Google Ads: Admin
TikTok: Admin or Operator
If using a system user (Meta), ensure it is assigned to the ad account.
Ask your account administrator(for the remarketing channel) to grant the correct permissions
This solution is available for:
Facebook Ads
Google Ads
TikTok Ads
Account Status and Availability Errors
Ad Account Deleted, Suspended, or Not Active
This error means the ad account linked to the audience is no longer active or has been removed from the ad platform.
To solve this issue:
Check the account status directly in the ad platform
Reactivate the account if possible
If the account was deleted, connect a valid ad account in Integration Settings
This solution is available for:
Facebook Ads
Google Ads
TikTok Ads
Ad Account Not Linked to Required Business Entity
This error means the ad account is not properly linked to the required business structure (Business Manager / Business Center).
To solve this issue:
Facebook: Ensure the ad account is linked to a Business Manager.
TikTok: Ensure the ad account is linked to a Business Center.
Verify ownership and asset assignment.
This solution is available for:
Facebook Ads
TikTok Ads
Audience Validation and Policy Errors
Audience Violates Platform Terms & Conditions
This error means the audience does not comply with the ad platform’s policies (for example, restricted data usage or policy violations).
To solve this issue:
Review the platform’s advertising and audience policies.
Update your segment definition if required.
Retry syncing after making changes.
This solution is available for:
Facebook Ads
TikTok Ads
Audience Targeting Not Available in Selected Region
This error means the audience targeting is not supported in one or more regions selected in your audience.
To solve this issue:
Check regional targeting limitations in the ad platform.
Update the audience or campaign targeting settings.
Remove unsupported regions if necessary.
This solution is available for:
TikTok Ads
Sync and Processing Errors
Sync Failed During In-Progress
This error indicates that the audience sync process failed during execution. This may be temporary or caused by one of the errors above.
To solve this issue:
Click Check Errors to see detailed reasons
Resolve the listed issues
Retry syncing after fixes are applied
This solution is available for:
Facebook Ads
Google Ads
TikTok Ads
Audience Could Not Be Sent (Temporary Error)
This error means the platform could not process the audience at that moment. This may be a temporary issue.
To solve this issue:
Wait for some time and retry
If the issue persists, review authentication and account status
This solution is available for:
Facebook Ads
Google Ads
TikTok Ads
Identifier and Data Restrictions
Restricted or Limited Users in Audience
This error means a portion of users in the audience cannot be targeted due to platform-level restrictions (e.g. limited data usage).
To solve this issue:
Review platform policy restrictions
Adjust your audience definition if needed
Note that some restrictions cannot be overridden
This solution is available for:
TikTok Ads
Final Notes
Insider One lists all affected account names directly in the error message where applicable.
Audience syncing runs automatically, but platform-side processing times may vary.
Some errors require action in the ad platform itself and cannot be resolved from Insider One alone.
If you have selected multiple ad accounts or if multiple errors occur during the sync, an email notification will be sent to you. The email will include detailed information about all affected accounts and the related error reasons.