We have a scenario wherein at the time of MIRO if there are any backdated postings (different periods or months) and if there is some value change (GR value and IR value is different), system is picking Gain/Loss account (trasaction key "UMB"). Now,requirement is to trigger "DIF" transaction key instead of "UMB".
I want to know from where this can be maintained. I think OMJJ is for maintaining movement type wise transaction keys. Please help me in getting this maintained. Your inputs will be much appreciated.