A locked log rejects edits. Hours that were on the entry at lock time are the hours in the PDF. A project manager or site manager can append a note that says what was wrong and what the correct hours were.
- Crew cannot append to a locked log.
- The addendum does not rewrite the hash of the original entry.
- Invoices should be built from the locked log, then adjusted with a change-order line if the addendum changes the bill.