Labor timecards can be unlinked in the Labor Timesheet - Posted page. This may be applicable if a labor timecard has been manually linked to the wrong project, or if significant changes need to be made to the transaction, which should be then re-posted to Sage 100 Contractor.
Unlink a labor timecard
Go to Accounting Link and select Time & Expenses.
Select View Posted under the Labor Timesheet section.
Select the appropriate labor timecard from the list.