F-58 and F110

Hi Gurus,

I know the difference between F-58 and F110. I am facing an issue between these two. my client wants invoice date is previous dates and there is one credit memo for that in the currentyear and clear this in f-44 and thru F-58 we can make cheque payment. as per his requirement ,in the spool request the bill ref fled and date should be the invoice date. we have got this result with the abaper. for example invoice date is 23.02.2010 (previous year) and todays date hepost credit memo , celaring document and payment posting in f-58. it is working fine withtaking the invoice date and reference. The same we did in F110. FIRST WE POST IN FB60,F-41,F-44 andtomake thepayment we an f110 ,in that the bill date is taking the todays date and bill reference is blank.

the technicalperson is telling we made a program same logic for f-58 and f10. why there is a difference between these two. what logic i should provide to the technical person. heis telling we wrote the same program and logic for these two.F110 is fetching form regup and reguh tables andf-58 is from where?

how to solove this issue.