Accruing payroll costs

We are setting up our construction program to track labor hours on the jobs.  We are going to be using a labor cost rate to accrue the cost of the payroll.  We run payroll bi-weekly using a third-party to process.  We will export the hours along with the job info to a spreadsheet to upload to our third-party.  They will run the payroll and send us a GL download of the actual costs on a per job basis that we will import in to Acumatica to get the actual labor costs to the projects. If we set it up to accrue to the labor cost on the job and have an offsetting liability account how to we reverse the accrual when we import the actual labor costs from the third-party or account for the difference in the accrual vs actual?

TYIA!