---
title: "Concurrent Editing"
description: "Gessa v1 uses advisory editing indicators and expected-revision conflict checks."
engineVersion: v1.0.234
date: 2026-09-28
license: "(c) Gessa, proprietary. Cite with attribution to https://gessa.ai/docs/. Terms: https://gessa.ai/terms/."
canonical: https://gessa.ai/docs/creator/collaboration/concurrent-editing/
---
# Concurrent Editing

Gessa v1 uses advisory editing indicators and expected-revision conflict checks.

If another collaborator is viewing or editing the same resource, the workbench can show an advisory indicator. The server does not lock ordinary resources.

Project graph writes carry revision information. If your edit is stale,
Gessa shows a conflict message with a reload/retry path. AI mutation tools
receive the same structured conflict information.

Prefab Mode save conflicts show merge or override choices. Non-conflicting field
changes can merge automatically; conflicting fields stay visible so the editor
can choose deliberately.

Hierarchy reorder conflicts resolve deterministically. The latest committed
order wins, and the refreshed hierarchy keeps every entity.