Subscription Status: The delivery extension associated with this subscription is not available on this report server. Verify that the delivery extension is installed.

This error occurs when SSRS cannot find the delivery extension configured for a subscription—for example, after the extension is uninstalled.

If the goal is only to update a license, do not uninstall and reinstall the extension. Follow the License Activation Instructions instead.

When SSRS cannot locate the configured extension, it records the error and removes the delivery-extension value from the subscription. The existing extension settings remain in the database.

Restore affected subscriptions

After confirming that SFTP Destination is installed, run the following statement against the affected SSRS ReportServer database:

UPDATE ReportServer.dbo.subscriptions
SET
    InactiveFlags = 0,
    DeliveryExtension = 'Deztec SFTP Destination',
    LastStatus = ''
WHERE DeliveryExtension = ''
AND LastStatus = 'The delivery extension associated with this subscription is not available on this report server. Verify that the delivery extension is installed.';

This query assumes that every subscription matching that exact state should be relinked to Deztec SFTP Destination. Because SSRS preserves the ExtensionSettings value, restoring DeliveryExtension allows those subscriptions to use their prior settings again.