RFA PAPM accounts payable item function issue

[pp456]

Dear all,

we are trying post back from PaPM to S/4 using RFA Accounts payable line item function. however getting error-

No currency line item exists for line item 000000002 (parameters account GL), we tried all options but no luck.

we have only one currency field which was mapped already. Has anyone used this function before: do we need any additional config for this ? please suggest as we are able to post all other RFA GL/ accounts payable works

Thanks

[pp456]

I also could not find any SAP blog with details on RFA accounts payable item function as most of the blog covers other RFA func