Thank you very much! Werner Daehn for your help. now I able to user this function in R3 dataflow.
Previously,After i imported this function into SAP data stored I thought it cannot be used in R3 data flow. so i tried so many times to do on normal Dataflow and never sucessful.
I know and you would expect that you can use everything everywhere.
But inside a regular dataflow all we can do in calling functions via RFC - hence the function needs to be RFC enabled in SAP which it isn’t.
And in ABAP dataflows there is the limitation that we do no support table parameters for functions.
Sooner or later we have to get rid of as many limitations as possible.