Multi currencies FI documents posting for MIGO_GR

Hi everybody,

I've got an issue to fix. It consists of posting one more FI document in another currency, beside the first FI doc posting and in the transactionnal currency. this is to do in MIGO_GR. First, I'm trying to generate the supplement FI doc using BAPI_ACC_DOCUMENT _POST, then I have to look for a suitable user exit (maybe a BADI) to impact MIGO_GR to do my requirement.

I've got 1 company that manages 3 countries with 3 different currencies (2 local curr + 1 company curr) and I should create 2 additional accounts for 2 currencies (in specific table) to switch between them.

Could you please advise me?

Thanks in advance.