Overview

This event signals that a letter in the print supplier’s system has been transitioned. It is a Digital Letters internal representation of the various status update events received from the external print supplier API, such as “letter.ACCEPTED”, “letter.REJECTED”, “letter.PRINTED”, “letter.DISPATCHED”, “letter.FAILED”, and “letter.RETURNED”.

Channel: uk/nhs/notify/digital/letters/print/letter/transitioned/v1

Content Type: application/cloudevents+json

Event Type: Published

Schema

Data Schema Reference: /schemas/digital-letters/2025-10-draft/data/digital-letters-print-letter-transitioned-data.schema.json

Schema Reference: /schemas/digital-letters/2025-10-draft/events/uk.nhs.notify.digital.letters.print.letter.transitioned.v1.schema.json

Data Schema

Envelope Schema