List work that will remain open
Capture item, current state, promised date, customer or project impact, next action, and owner. Do not hand over a queue by sending only a link with no context.
Keep authority explicit
Name which routine actions the covering specialist may take and which decisions return to the manager. Temporary coverage should not become an unnoticed expansion of access.
Close the loop on return
The returning owner should receive decisions made, unresolved items, new risks, and evidence links. Mark each handoff item accepted or still open so nothing disappears between calendars.