Segment Adjustments in Closed Periods 
Use
Segment adjustment enables you to adjust postings made in periods already closed, without having to repeat the period-end closing.
For example, data such as the values of the tracing factors might only be available after period-end closing. You therefore need to adjust the previously accepted values. You can execute this adjustment without having to carry out a time-consuming repeat of the period-end closing.
Segment adjustment in the actual can be used for the following allocations:
Periodic reposting
Assessment
Distribution
Features
Segment Adjustment
Segment adjustments are carried out for periods for which period-end closing has taken place. These are known as periods to be adjusted .
The posting occurs in a period for which period-end closing has not yet taken place. These are known as posting periods .
Periods to be adjusted and posting periods can be in different fiscal years.
Requirement for a segment adjustment is that the relevant cycle in the period to be adjusted has already been executed.
There are two types of segment adjustment:
Segment Reversal Without Segment Rebook
The segment reversal reverses postings in the period to be adjusted for one or more cycle segments. The posting occurs in the posting period. The posting is made for identification purposes in reporting under its own business transaction (see: Business Transactions in Controlling ).
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Neither the cycle itself, nor the tracing factors are adjusted during the segment reversal. There is no explicit segment rebook. The values generated by the segment reversal are dealt with during the regular period-end closing for the posting period.
You normally carry out the segment reversal when adjusting segments with fixed tracing factors .
Segment Reversal with Segment Rebook
First, you carry out a segment reversal as described in part 1. Then, the segment rebook performs the postings again for the period to be adjusted. This can be for one or more segments in a cycle. The posting occurs in the posting period. The posting is made under the given original transaction, that is the transaction for the actual periodic reposting, actual assessment, or the actual distribution (see: Business Transactions in Controlling )
In the segment rebook, the cycle is executed for segments in the period to be adjusted. Note the following:
The system does not redetermine the sender amounts to be allocated, rather it takes the credit amounts of the previous segment reversal.
Caution
Note that the sender amounts in the following case are redetermined. If you entered fixed amounts for the sender or receiver, these amounts are included in the segment rebook.
To do this, choose the sender or receiver rule Posted amounts .
The system uses the segment definition valid for the current posting period.
The posting occurs in the posting period.
Example
You carry out segment rebook, if true errors have occurred in the period to be adjusted, for example, if incorrect receivers or tracing factors have been specified. These errors are adjusted in the cycle or in the period to be adjusted. You then execute a segment rebook.
You normally carry out the segment rebook when adjusting segments with variable portions .
Reversing the segment adjustment
You can reverse segment reversals and segment rebooks. The system determines segment reversal and segment rebook documents for the given segments and posts them in the posting period with reversed +/- signs.
Within the segment adjustment you can:
Carry out a segment reversal
Carry out a segment reversal with subsequent segment rebook
Reverse the adjustment postings
At period-end closing for the posting period, according to the cycle definition, the system uses the values from the segment adjustment postings.
Caution
It is generally not advisable to use the segment adjustment for iterative cycles, as the function is only executed for the specified segments. The effects upon other segments in the cycle are not considered in the period to be adjusted.
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If you rename segments after executing the cycle, this will lead to errors during segment adjustment. You should only rename segments if you are sure that the cycle has not yet been executed. To group segments, you can use the sort field in the Cycle Maintenance overview screen.
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Segment adjustments are updated under their own transactions, which you must assign in the Implementation Guide Assign number ranges (see: Business Transactions in Controlling ).