Yes you can. I usually do this by doing a journal entry (I call it “JC reclass”) with no entries in the ledger. Simply open journal entry and then go to job costs and post your debit and credit as needed to reclass the costs. It will be a $0 ledger transaction but it will reclass the job costs. 

Keep in mind when you do this , it is simply a journal entry and there’s no backup or AP associated with it. You’ll have to go back to the original cost input if you want to see the original details and vendor , etc. 

If you are current on Sage 100 Contractor 

you can edit open or paid AP to fix the job and job cost. And there is a job correction feature in payroll so what are you trying to accomplish with a JE? 

I'm curious - how do you do both of these options

How do you do it on payroll? - Is it where you just do a negative hours on one job and positive hours for another job?

And how do you it on A/P - because if I go to a paid payable (4-2) it does not allow me to edit/change the job (subaccount)

Hi Sam. For payroll, see this KB article. For an AP Invoice, if the invoice is linked to PO or Subcontract, you can't change the job.  But, you can reallocate the job costs in a journal transaction per the instructions in this KB article. For the AP invoice, this will  not change the job itself on the invoice, just the job costs.