Message GLT2201 'Balancing Field Profit center in line item 2 not filled'

Question

I am getting this error message whenever I try to charge of the over payment back to the same customer account using posting key 15 (assuming the customer is paying 150 for 100 invoice, I am trying to charge off the 50 to the customer by clicking on 'charge off difference' button). 
I know that if I gave a valid invoice number on the 'invoice reference field' then that line picks up the profit center from that.  But the users dont wanna do that & wanna manually be able to enter the profit center on that line or it can default from the debit side of the entry (banks side).  So when I made the profit center field optional on both the posting key & field status group variant for recon accounts, it does not even show up.
I know there are several threads out there with the same issue but none seem to give the solution.  If anybody knwos the exact solution, I would appreciate it if you can post the solution.
Thanks in advance for your time & effort...
Morgan

Answer 1

Dear Murali_Babu. N
Your means is We need manually input profit center for every line item, am i right?
SAP can not auto set the profit center of line item 1 and line item 2  in this case, am i right?
The document as below:
Pk........Accout..Text............Amout......Profit Center
40.......11101....Cash............30.00.......10001 (need manually input)
40.......11101....Cash............70.00.......10002 (need manually input)
50.......42074....Expense......40.00-......10001 (manually input)
50.......42074....Expense......60.00-......10002 (manually input)