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Per-platform overrides

In Social preview, the Default tab applies everywhere. The Facebook, X, LinkedIn, WhatsApp and Slack tabs override any field for that platform only; empty fields fall back to the default.

The social preview panel with Default, Facebook, X, LinkedIn, WhatsApp and Slack tabs

Each tab shows a preview card drawn the way that platform draws it, so you can check line lengths and cropping before sharing. Typical uses: a shorter title for X, a square image for WhatsApp, a more formal description for LinkedIn.