I can't edit a completed sheet

If you click into a cell and a small dialog pops up asking for a "change reason", you're editing a locked sheet. This is the workspace's by-design behaviour, not a bug.

What's happening

A sheet is locked when:

• The sheet itself has been marked complete, or
• The project's status is Finalised or Archived.

In either case, every edit requires a one-line change reason so the audit log can capture why the change was made.

What to do

You have three choices, depending on how many edits you need:

One or two small edits

Just type a reason in the dialog and confirm. The edit saves; the reason is logged. Repeat for each edit.

Many edits coming

Reopen the sheet, that ends the change-reason requirement for this sheet (provided the project itself is in Draft or In review). Make your edits freely. Mark the sheet complete again when done.

If the project is also Finalised or Archived, you'll need to change the project status back to Draft or In review first (with a reason). That ends the project-wide locking; then reopen sheets as needed.

You really shouldn't be editing this

Stop. Locked sheets exist for a reason, the customer signed off. If a substantive change is needed, loop in your team and document the why clearly in the change reason.

Why this exists

In construction, decisions are sequential and binding. Once a customer signs off on Plumbing, suppliers are ordered and trades are scheduled. Changes after sign-off matter, who did it, when, and why are part of the project record. The change-reason flow makes that record automatic. See change reasons for the full rationale.

What good change reasons look like

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