How to identify prorration period at rate step level

[moises_gomezquintero]

Hello to all,
I'm in a atypical situation, according to requirement when consuption cover a normal period I have to do calculation on monthly period basis but if I'm on a prorrated period like price changing or device replacement I have to do billing based on day period basis.
I've try using IF11, IF16 and IF17 variants but none of them do what I need.
Does anybody knows if this is posible?
Thanks in advance.

[namitkgupta]

I know this a old post. But I thought of adding a solution option from my end.

You can put additional validations in the user exit EBIA0002  ( EXIT_SAPLEA00_001 ) for IS-U: Enhancement for External Proration dates and define your own proration.

[moises_gomezquintero]

Hi namitkgupta, I hope you are doing well.

First of all, thanks for your answer, I was trying to probe if during the billing process, system stop at the exit, but although the module function is active and I wrote a break point it doesn't happen.

Do you know if I am missing something ?

Kind regards.

Moises.