SPCOPYCATEGORY with formula in Account property

hello,

we have a call to SPCOPYCATEGORY stored procedure in our logics, and the account property is called FXCTA. It contains a formula and we don't know what is calculated exactly.... Could someone provide explanations here?

*RUN_STORED_PROCEDURE = SPCOPYCATEGORY([THISAPP],%CATEGORY_SET%,%CATEGORY_SET%,[%CURRENCYMBRS%],[FXCTA],[%SCOPETABLE%],[%LOGTABLE%])

In account dimension, FXCTA property = []-[DBalSheet] for account DCTA.

DBalSheet is the balance sheet account node (containing all the balance sheet accounts).

Thanks for your help.

Rémy.