I've managed to subscribe to 2 BC webhooks, salesInvoices and salesOrders but I keep noticing that sometimes I don't get notifications or I receive them with a long delay. This is true especially in the afternoon (UK time).
Another issue in the last days is that a webhook subscription may disappear. For example this morning I was receiving notifications from salesOrders, the expiration date/time was "expirationDateTime": "2026-02-20T09:34:12Z", that is in 3 days (today it's 2026-02-17). Now, if I check the subscriptions via api/v2.0/subscriptions I see only salesInvoices, while salesOrders has disappeared. Moreover, if I try to subscribe again nothing happens.
Does this happen frequently? Has anyone had the same experience?