The barcode is added to Zettle now when a product had an update in woocommerce. The only problem now is Zettle is not syncing to Woocommerce because Zettle is blocked by the server.
Hello Joost,
Thank you for your quick reply.
1) I have changed the value but without success.
2) I have asked my host if https://products.izettle.com/ & https://oauth.zettle.com/ are being blocked. They are.
They advised me to whitelist the IP’s. Can you tell me which IP’s I should whitelist?
Kind regards,
Enrico
