Field help (BLCCUR) 

Currency into which the amounts of the entries are going to be converted.

If the extraction currency of the consolidated data matches the reporting currency, the retrieved amounts are the sum of thereporting amounts ([F:DAE]AMTRPT).
If the extraction currency of the consolidated data matches the company currency, the retrieved amounts are the sum of the company amounts ([F:DAE]AMTLOC).
If
the extraction currency of the consolidated data matches a currency other than the company/reporting currencies, the retrieved amountsare calculated on the basis of the amount in transaction currency ([F:DAE]AMTCUR). The exchange rate then applied is determined on the basis of theexchange rate tof the journal and its account date.