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Transaction CKMM and production startup CKMSTART

At Material Ledger production startup CKMSTART, the system automatically sets all materials to price determination control 2.
If required, you can change the price determination control using transaction CKMM.
If you activate actual costing, you must set the price determination control to 3 for the materials which should participate in the actual costing.

 

 

You should take into account that Material Ledger will consider price differences recorded for the material from that moment on (price determination is switched to '3'), in order to calculate the actual price.
When changing the price determination control from 2 to 3, the material is assigned the "New Objects" 01 status in the current and previous period, and the last period of the previous year. This is explained in the note 384553.
All postings posted before this change are not relevant for the period-end closing. Material Ledger will consider price differences recorded for the materials from that moment on (price determination is switched to '3'), in order to calculate the actual price.

The information of note 596558 is relevant concerning CKMSTART and CKMM:
(...)
b) Changing the price determination control
At production start, the system automatically sets all materials to price determination control 2.

If required, you can change the price determination control using transaction CKMM. If, for example, you activate actual costing, you must set the price determination control to 3 for the materials which should participate in the actual costing.
If the actual cost component split is active, the cost component split data is also created during the changeover to price determination control 3.
For the cost component split of the prices (material ledger database tables CKMLPRKEKO and CKMLPRKEPH), the system transfers the cost component split of the cost estimate.
If this does not exist, the system creates a trivial cost component split. That means that all amounts are summarized in the cost component for material consumption. The system determines the consumption cost component from the account for the offsetting entry to stock posting of movement type 261 (consumption for order from warehouse).

c) Releasing prices for materials with inventory
The sequence you use when you release prices and change the price determination control has an effect on which prices are used for the valuation of your materials in the first period with active Material Ledger.
In order to start the actual costing with new prices, proceed as follows:
Release the new prices after the production startup and then change the price determination control from 2 to 3.
Keep in mind that when you follow this procedure, the price changes are kept on the revaluation account.
 
Transaction CKMM (changing price determination): how and when?
                                                                                                                                                                                                                                                          
If you change the price determination control for a material from 2V to 3S, it is recommended to do it shortly before running the MM period shift (Transaction MMPV) at month end. This timing will ensure, that status 01 'New Objects' - which does not force ML closing - remains in the prior period unchanged. The current period as well as the newly opened period will also initially have this status, which may change later during postings. 
Price changes can be done before or after transaction CKMM is performed.When doing the price change before the switch of the price determination control, the new price will be the initial  'actual price'. If the price change is done after transaction CKMM has been performed, the price change is included in the price differences, which means, the initial actual price will be the one before the price change. The impact onto the preliminary valuation is the same though.

If you change the price determination control for a material (transaction CKMM) from 3S to 2V it is recommended to do it shortly after executing the Material Ledger closing (transaction CKMLCP) to consider the price differences created during the period. When the price determination control is changed to 2V, the system deletes all price differences in the material ledger, except for the price differences from revaluations. These changes also affect the current and previous period, and the last period of the previous year only. Please see also paragraph Undesired effects resulted from CKMM execution 3 → 2.                                                                                                                                                                                                                                                                                 
Check details in the notes:

 

  703604 CKMM: When to change price determination '2' to '3'
1575904 How to use transaction CKMM with split valuated materials
1949907  How to update Price determination field in materials with split valuation
 
Undesired effects resulted from CKMM execution 3 -> 2

The wrong usage of transaction CKMM changing the price determination from 3 to 2, will lead to the following side-effects:
Price differences have been deleted from Material Ledger tables.
Status '01' New objects in CKM3.
The material has not been considered in the Selection step of CKMLCP.
The cost component split information for the material has been deleted.
In CKM3: prior period ending inventory <> current period beginning inventory


In order to avoid undesired changes in price determination with CKMM, the system triggers a warning message when running CKMM 3 -> 2.
The user has the option to go back by pressing 'No' and the material will  remain with price determination 3.




See the notes:

 

384553 Data inconsistencies after CKMM 
300720 CKM3:prior perd endng invtry different from crrnt perd beginng inventory

The transaction MM04 (display changes for material master) will provide detailed information about the day and time when CKMM has been run for a material.



Parallel processing in transaction CKMM

2245137 CKMM: parallel processing

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