Corrections, replacement and rework serve different purposes. Establish whether the problem is an inaccurate observation, an unsuitable open attempt or work that must be done again after completion. Keep the physical unit under the site's normal quality controls while deciding.
Preview a correction
Open the attempt in Supervision and inspect the original evidence and events. Select the correction operation for the affected observation and state the reason. Review the correction preview before confirming: it identifies evidence that will stop counting, including dependent work where applicable.
Confirm only when the physical consequences are understood. Corrections preserve the original history. Tell the Operator which evidence or work must be repeated, and require the current step to be checked again. Do not submit a different value solely to turn a failed check into a success.
If another person changed the attempt, refresh and repeat the preview against its current state. A preview of an older version cannot safely describe the effect of a new correction.
Replace an open attempt
Use replacement when the unit needs a new traveller from current approved inputs. Review the fresh replacement preview, confirm its source revision and release and give a reason. The replacement remains linked to the earlier attempt; earlier evidence does not become proof of the new one.
Cancellation records a supervised end to open work. Arrange the physical disposition separately and record the reason. Do not use cancellation as a silent way to erase an unwanted history.
Rework a completed unit
For completed work, record a later concern against the completion when appropriate. A concern qualifies the retained record; it does not rewrite its original bytes or result.
Where the family has an assigned rework release, review the rework preview and reason, then create the new attempt. Check its lineage and instructions before handing it to the station. Complete the rework's own required evidence.
Read the evidence in time order
The earlier completion and exports remain what they were. A later export can include later qualifications, but downloading an old export does not regenerate it. When explaining the outcome, identify both the original and successor attempts and state which concern or rework each document includes.
Use history and exports to preserve the complete handover. If the application refuses the selected remedy, keep the unit controlled and escalate with the attempt identity, refusal and intended physical action.