t perform the injection, and the reason is also shown.</p><p>Possible reasons the webhook won&rsquo;t perform injection or the injection will have errors:</p><ol><li><p><strong>No matching namespace labels or pod labels</strong>: Ensure proper labels are set on the namespace or pod.</p></li><li><p><strong>No matching namespace labels or pod labels for a specific revision</strong>: Set correct labels to match the desired Istio revision.</p></li><li><p><strong>Pod label preventing injection</strong>: Remove t