Thanks to both of you, I adjust accordingly. The strange thing is that, I have an open ticket and the way I've always corresponded with the team is by simply replying to that email and it's always gotten through. This is the first time I've seen that bounce (which suggests a change somewhere). No worries though, I'll just log into the helpdesk portal and add a comment directly to the ticket.

Hi, It's a very good question and that's why we are working on our new "Vates virtualization" bundles: basically, you'll have one pricing for the whole stack (both XCP-ng and XOA together). XOA "alone" support doesn't make sense anymore anyway. That's also why XOA as a standalone product (and XCP-ng) will probably get removed in favor of those new bundles. To answer your question on how it works now until the next months: if there's a problem during a backup because your storage, if there message tells "VDI SNAPSHOT FAILED. This is a XCP-ng error", obviously, you won't be covered because it's likely a storage issue, not a Xen Orchestra issue. If you want to have more info on our future bundle pricing, please contact us for an offer on https://vates.tech/contact/