Why it matters
Shared editing creates a new question: who else is here right now? Presence can prevent accidental overwrites, but it needs a sensible timeout and a clear rule for concurrent changes.
A colored avatar is only a hint. The product must decide whether to lock editing, merge changes or warn before one person overwrites another.
Decisions to make
- Choose presence scope: page, document, field or workspace.
- Set heartbeat and stale-presence expiration behavior.
- Decide between locking, conflict prompts or collaborative merging.
- Plan privacy controls for visible activity.
- Define behavior when a client disconnects mid-edit.
Build checklist
- Track ephemeral presence separately from durable document state.
- Show who is editing and what is at risk before save.
- Detect stale versions at write time, not only in the UI.
- Test simultaneous edits, reconnects and abandoned tabs.
- Offer a recovery path for a rejected or conflicting save.
Common mistakes
- Treating a presence indicator as a concurrency control.
- Leaving a user shown as active long after disconnect.
- Silently overwriting another person’s newer version.
Tools & references
3 starting points to compare or study. Check fit, maintenance, terms and current capabilities before choosing one.