OBXL - New Entry with Reason Code not working

Hi

We maintained OBXL as follows.

Reason Code : Blank ; Account : 100

Reason Code; MRT ; Account : 200

But when i try to post F-32, it is always posting account with reason code Blank which is 100. I debugged the standard code. But at one place it is picking account from table T030 which always picks 100 account from the include MF05AFK0_KONTENFINDUNG_T030.

Please suggest whether any other config is missing.

Thanks