Expense Allocation API

Hi,

I have a requirement to route certain expense types based on the data captured in flexfied values.

I am doing this using the client extension AP_WEB_CUS_ACCTG_PKG.BuildAccount.

For certain expense types, I also need to split the allocation based on the data captured in the flexfields. Does anyone know if there is an API I can use to achieve the same split allocation functionality that is controlled with the profile options "OIE: Enable Expense Allocation Splitting" and "OIE: Enable Expense Allocations"?

Thanks