That is correct. You may not post. jE against any  controlling account. This keeps the GL and aging in balance (unlike QB)  

You can void and repost the cash receipt, or post a reversing entry thru cash receipts.  Or post a cash receipt for the amount you need to move from one client or job to another  

To write off to bad debt you must enter a credit to the job and then apply the credit against the outstanding balance thru cash receipts  

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Hi there...

Tried to do a reversing entry through cash receipts as you suggested but I could not find anywhere where/how I would reverse.  No matter what I try it doesn't work.  So one client has not been given credit for their payment nor has Bad Debt been charged for the collection fees.  

IF I void the original cash receipt dated 7/16/17, and then re-enter correctly, I will need to re-reconcile.  Not knowing Sage like I know QB, if I just bring up a reconciliation through 9/30/17 (which was just reconciled), will it show these new entries dated 7/16/17 so I can "reconcile" them?

Yes it will. Consider it a supplemental recon. 

Bht make sure you haven’t started clearing any October transactions yet. 

Yes it will. Consider it a supplemental recon. 

Bht make sure you haven’t started clearing any October transactions yet.