I usually start by looking for a credit as that is the most common cause. Next I pull up the AR list with just that client and go through the transactions with the next button. If I still can't find it I would run a statement with the option to show all invoices and to show payment distributions. If you still can't find it  run data verification with only look for errors checked. You might need someone to take a look as there might be a problem with the data.

Thank you!!  I found it.  Only took me 2 hours but your suggestion of the statement worked!

Charlene

Thank you!!  I found it.  Only took me 2 hours but your suggestion of the statement worked!

Charlene