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The Mailroom / The notice
The message that is itself a step

The notice: the kind of message whose arrival is the event

A notice is not a louder receipt. A receipt records something that already happened; a notice is part of how something is allowed to happen, which is why the date it arrives can be more important than anything it says.

Desk spec
effects tested
8
a message alone does
3
needs something else
5
notices in the month
2
the five kindsA receipt records something that already happened, marketing promotes something, a service note explains a state of the account, a security alert says something changed, and a legal notice is the message whose arrival is itself a step.
the two switchesOne stops marketing and nothing else - 12 of 50 messages on the samples. The other does not stop anything: it changes the channel the remaining 38 travel on, which changes how they arrive and what they prove.
the three countsSent is what the operator's log holds (50 of 50), arrived is what a delivery receipt shows (48 of 50), and read is what a read receipt shows (21 of 50). Three counts, routinely called one.
Direct answer

A notice is a message whose arrival is a step in a process rather than a record of one. Eight effects were tested on the samples: a message can inform a reader, evidence that a notice was given, and start a period - three of the eight - and it cannot by itself change a term, move money, close an account, reverse a decision or create a right.

Eight effects, three of them a message can have alone

The test is simple and it separates a notice from every other kind: if the effect would occur without the message, the message is a receipt; if the effect is the message arriving, it is a notice.

Sample J - eight effects, and what each one needs
EffectA message aloneWhat else is needed
the reader is informedyesnothing
the notice is evidencedyesnothing - the send is the evidence
a period starts runningyesnothing, if the terms say arrival starts it
a term changesnothe clause that permits the change
money movesnoa payment instruction or a credit
an account closesnothe operator's decision and the balance settled
a decision is reversednothe operator acting on the reader's request
a right is creatednothe terms, a rule or the reader's own action
eight effects3 of 85 of 8
sample J - the split, counted effects tested = 8 a message alone achieves them = 3 -> 3 / 8 = 37.5% needs something else = 5 -> 5 / 8 = 62.5% of the 3 that a message achieves alone, all 3 are about knowledge, evidence and time - none is about money, status or entitlement so a reader who treats a notice as a decision has skipped the step that actually produces the effect.

Why the date outweighs the words

Where the terms make arrival the event, the same sentence is a different instrument depending on when it lands. On the samples two of the fifty messages are notices, and both of them name a date rather than a fact.

sample A and I - the two notices in the month notices in the month = 2 of 50 -> 4.0% each carries: the term affected, the date it takes effect, and (in the samples, on neither of them) a route to object a notice that arrives inside its window is a step in the process; one that arrives outside it is only a document the window for a terms change is 30 days (sample I), so the same two notices have 30 days of usable life, or none.
Nothing on this desk is a legal opinion or advice about a live account, a live message or a live bet. It explains how the mechanism is put together.

What to do with a notice

A notice is the one kind of message worth acting on before it becomes a receipt, which is what the checklist is for.

  • Find the date the change takes effect, and the window it has to beat.
  • Separate what the message tells you from what it does: it informs, it evidences, it starts a period.
  • Ask what else has to happen for the effect the notice announces, and who does it.
  • Keep a notice with its date, because the date is the part that later matters.
  • Treat the absence of a route to object as a question to ask while the window is still open.

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