Edit and update

Diagrams are edited in place by anyone who can edit the page. That is the point of them, and it is also where the sharp edges are.

The Excalidraw surface open on a user journey diagram, with stroke, background and layer controls on the left and a library of Azure icons on the right. — Editing opens the drawing surface with its own style controls and libraries, and the page picks the change up when you save.

Update a diagram. Opening the editor, and what saving actually writes.
Version history. Every save is a version, and old ones can be restored.
Save conflicts. What happens when two people edit the same diagram, and how to recover.

Editing a diagram edits its source, never the rendered image. The picture is regenerated, so there is no stale copy to clean up.

#Everything in this section

Update a diagramOpen an existing diagram, change it, and understand exactly what is saved.Diagram version historyEvery save is kept. How to see previous versions and restore one.Save conflictsWhat happens when two people edit the same diagram at once, and how to get both changes back.

How diagrams work

What a save actually writes.

Troubleshooting

When a save will not stick.

Reference

Version limits and retention.

Edit in place, and the page never goes stale.