Support

Contact support@kommacsv.com, hosted on iCloud+. Inbound mail and replies have been verified. Include your order number and purchase email for purchase/refund questions. Do not send full license keys, passwords or card numbers.

On the old Mac, open Komma > License > Deactivate this Mac, then activate on your new Mac with the same key. Contact support if the old Mac is unavailable.

Check connectivity and retry license validation. If Keychain access fails, unlock it; do not erase your entire Keychain. Save open documents before closing them. Reproduction steps, Komma/macOS versions and a non-confidential sample help investigation.