强行倒回物料期间究竟有什么影响

xiaoerp

在使用这些东东
OKP1 -- CO period
OB52 --FI period
S_alR_87003642--fi Period
MMPI-- Material period  Init
MMPV—Open Mat. Period
MMRV –check allowed period
OMSY: Display Material period
CK22 -- Material cost allowed update period
玩期间时发现一些问题,其中一个是不小心将material Period开到2005/02,
mmpv当然是不能倒回,使用MMPI当然是能倒回来,但是SAP说将来的库存会有问题,
并且打了个就是说比如2005/01 A有stock 1000个, 将period开到3月后做了1000个,
这时再倒回来就可能引起data incons..什么的. 比如查stock是2000(更detailed的就是
stock保存在MARD表中,LVORM--Fiscal year of current period,LFMON-current period是每次
收发货会更新的,material 从1跳到2月是不会改动, 但是倒回来就会从2改到1,但是交易数据产生的material
doc, FI doc的posting date是改不回来的), 1月就是1000了(还有1000在2月).

现在的问题是如果强行使用MMPI将period从2月倒回1月(假设没做任何操作,我感觉好象是没有任何影响),究竟会什么后果?那个material period表是MARV,请各位指点?



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xiaoerp

notes:487381
Symptom
For period closing with initialization, the system displays a message saying that period closing cannot be started.


Before you start period closing with initialization, you must be aware of the consequences of period closing with initialization.This note describes the possible data inconsistencies that might occur if you carry out the initialization in a productive system.The resulting inconsistencies are not to be traced back to a system error but they are a result of the period closing program with initialization.


Hence, these inconsistencies can only be corrected within the remote consulting purchased separately since normally you no longer need to start the period closing program with initialization in a release > Rel. 4. 5.


Other terms
MMPI, PIINKON, MMINKON, RMMMINIT, MMINKONH, history records, MARDH, MBEWH, MM016, MM 016

Reason and Prerequisites
The prerequisite up to Release 4.6C is the implementation of Note 369637.

Solution
In order to be able to have the period closing program running, you must reserve parameter ID MMPI_READ_NOTE with the current date in the user parameters with the current date in form YYYYMMDD (Y = year, M = month, D = day).


If you already need this additional security beforehand, implement the attached correction instructions and create SET/GET parameter MMPI_READ_NOTE.The SET/GET parameter belongs to development class MG and should have the following short text:

'Follow the instructions in Note 487381 before initialization '.

In addition, change message MM(016):

'Follow the instructions in Note 487381 before initialization'.


The SAP system works with the period concept of stocks.In the system, postings are updated precisely to the period.The inventory balances of the current and of the previous period are relevant to posting.As of Release 4.5, the history concept of the inventory balances has been introduced as an enhancement.

Bear in mind that the initialization of a posting period has the following effects concerning the period stocks:

The initialization of the posting period to a previous or to any posting period may lead to the loss of the information of the inventory balances of the previous periods.The book value of the current posting period is taken as the basis also for values of the previous period in this case.
            If you want to continue working with this new posting period, in addition you should execute report Z_DEL_HIST_ENTRIES attached so that history entries greater or equal to the new posting period will be deleted.

If you have to briefly reset the posting period by one period (for example, postings must still be posted in a certain period) just to make a correction (and for a small number of postings), you should initialize the posting period back again to the old value so that the values of the previous period will not be lost (you should forbid postings when carrying out corrections).
            However, afterwards the values of the previous period or the history records (as of Release 4.5) of the materials posted in this case are inaccurate.

           You should NOT execute report Z_DEL_HIST_ENTRIES in this case.

However, if the posting period is generally reset again to a previous posting period and if postings were made during this time, all information on the inventory balance of the previous periods is lost.
           As of Release 4.5a, you should use the cited correction report Z_DEL_HIST_ENTRIES in order to delete history records that are more current than the current posting period.Otherwise, it can result in deviations (inconsistencies) for the update of the history records.

Important! If there are open physical inventory documents that have status 'counted' or for which indicator 'Freeze inventory balance' has been set, you should reject these if they refer to a previous period or have been created in the former previous period.The inventory difference to be posted can be determined from the current book value of the previous period and the book quantity frozen in the physical inventory document (ISEG-BUCHM) and does not match the inventory balance of the previous period that is currently valid.