Material ledger Price determination change

Question

For the FERT materials - we have material ledger active, price determination 2 and price control S setup as of now. We have the standard cost for the group and Moving average is calculated for information purposes - now we want the moving average to be periodic.
I changed the price determiation from 2 to 3 in ML activation but had no impact.
My questions are:
1. Should we do this at the material level - so that moving avg does not get updated for each transaction and instead by period.
2. what are the steps/tcodes to be taken before and after changing the price determination.  I understand we need to run ckmlcp - but need clarity on all the steps I have to do both from config and master data perspective.
3. Test script steps

Answer 1

Hi!
A+ 1st point. Other decision is when you do MMPV.
B+ I think its better do MMPV on 01/may before do CKMM,  so in point iii, you close of April. If you do CKMM with MMPV active period April, ML will be active for March and April. Again this is just a personal point of view.
C+ Well, the procedure is correct,  Keep in mind the following: The system consider in your scenario S2 > S3 as Actual Cost of April the value in the standard at the moment of CKMM, so the flow:
> CKMM > Release Standard>  At the release, system  create a price diff (UMB), that is part of your actual cost (initial of may). The value is the diff of your previews and new standard.
In the ML Close of april, UMB of MAY  will be cleared and converted in PRY/PRV. If you want details of this, check Standard Cost Release with ML Active.
Its important you validate it, because if the system dont select this materials, UMB $$ will be part of your P&L account.
In the ML close of May, this value will be consider part of the actual of May.
D+ What will happen if the run (iii) above after point (i ) will the ML revaluation will have impact on the material changes to 3S.
The ML close of april have impact if you post (GM, IR, Settlement) for this materials on April. If this materials are produced, its common that you do the settlement of its order the 1 or 2nd day of may with posting date of april, but as i toldyou is a common procedure.
E+ Just thinking, Its a good idea you do the ML close for this materials in April (status set to 70)
If for any reason your ML close dont select them there are some workaround  eg check this oss 1602599 - Additional selection options for selection
PS1.  Wish this give you more ideas. This topic is interesting and difficult to explain, because have some `depends on`. Again, i recomend you test in your QAS system!
PS2. This post maybe give you other ideas Material Ledger Activation  - Lot of Questions in startup.
Arturo.