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Likely cause: The destination was never fully connected, or the OAuth authorization flow was interrupted before completion. Fix:
  1. Go to Destinations and click the affected destination.
  2. If the status says Not Connected, click Connect to start the authorization flow.
  3. Complete the full OAuth flow in the popup window — make sure to grant all requested permissions. For Meta, ensure you select the correct Ad Account and Pixel. For TikTok, select the correct Advertiser Account.
  4. After authorization, return to Upstack and confirm the status changes to Connected (green).
  5. Trigger a test event on your store and check the Live Event Stream to verify the destination receives it.
Pop-up blockers can silently prevent the OAuth window from opening. If clicking Connect does nothing, allow pop-ups for app.upstackdata.com.
Still stuck? Contact support@upstackdata.com with your Pixel ID and a description of the issue. We typically respond within a few hours.

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