Sent
The recipient was issued a unique link to a specific procedure revision.
Too important for a checkbox. Too small for an LMS.
Move beyond "sent" without claiming to prove understanding
PDF attachments, spreadsheets, and paper sign-off sheets make required reading hard to follow. Readcrumbs separates delivery and activity into useful states while carefully treating acknowledgment as acknowledgment—not proof of understanding.
Four states that should not be conflated
Opened
The recipient used that link and began the reading experience.
Worked through
Progress shows movement through the procedure rather than only an email open.
Acknowledged
The named recipient explicitly acknowledged the procedure after reading it.
Make required reading easier to account for.
Start with one procedure and named recipients. No worker accounts or LMS rollout required.