Stop tell me when my new bill is ready?

We will stop sending these. You can start them again later if you change your mind.

Behind the scenes

Property names follow docs/profile-communication-subscriptions.md, which says its own spelling is illustrative. The shape is what was decided.

Usable destinations

email: no usable destination
sms: no usable destination
post: usable
in-app: usable

Seeded by seedChannel() against this fixture — §4.1, the one communication rule with real logic behind it here.

Subscription

subscriptionId: sub-ct-bill-ready
catalogueTopicId: council-tax.bill-ready-alert
state: active
basisAtOptIn: public-task
noticeVersionAgreed: v1
channel: email
channelSource: catalogue-fallback
createdBy: Citizen
captureChannel: my-account
createdAt: 2026-07-02T09:20:00Z
deliveryIssue: We do not have a confirmed email address to send this to.

Not modelled

Expiry, withdrawal history and officer-captured consent. Examples 6.3, 6.6, 6.7 and 6.8 are not fixtures, so nothing renders them.
What happens to a Subscription when the contact value it depends on is removed. Phase 1 sends to the primary confirmed destination for the channel, so there are no per-Subscription pointers to repair.
The material-change flow that forces re-opt-in. §5 lists the event; no owner and no journey exist for it.