All error codes

backup_not_found

HTTP 404 Backup not found

What happened

The backup id in the path is not a backup of this server. The identifier is the moment the backup was taken, in UTC and ending in Z, so an id built from local time or carrying an offset never matches. It also answers this when the backup was never created, belongs to a different server, or has already been deleted or dropped by retention.

What to do

List the backups of that server with GET /v1/servers/{id}/backups and use an id from that response. If that list itself answers 503 backup_list_unavailable, the list could not be read at all - retry later instead of concluding the backup is gone.

Retrying

Repeating this request will not help.

How it arrives

{
    "type": "https://docs.fiberax.com/errors/backup_not_found",
    "title": "Backup not found",
    "status": 404,
    "code": "backup_not_found",
    "request_id": "a277dcd1ca652c65"
}

Branch your code on code, never on the wording of title.