It looks like this is happening when AR goes to post the RS (Sales) batch in GL-O.  This has been happening for a few months now.
 
On our advanced cash orders, we have always added a wire fee to cover the incurred cost of receiving wire payments (these are typically international orders). When AR posts, GL-O is adding another wire fee debit & credit, one or both of which ends up falling under the clearing account. Finance of course has to go into GL-P (edit GL) & change the account number. It seems that it is always $33, no matter what the value of the actual sales order fee is. I'm not sure where this amount is coming from.
 
I asked Finance to look at the parts involved in the sales, which are varied (not always the same part), and potentially see if any thing like the part type may have changed and affected the item class or something.  Is that one cause?  What else could be causing this to happen?
 
Thanks in advance!
 
Kind regards,
 
Val

Thanks!  I will pass this along to the Finance folks.  Sounds like I was getting into the right track, a little bit.  

Thanks, Lynn.  I have also forwarded this info to Finance.  
 
Appreciate the help!
 
Kind regards,
 
Val