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Locking and Unlocking Limits 
You can identify changes to business conditions (such as a worsening credit rating of the partner) by setting a lock flag in the limits for utilizations from new transactions.
You can apply the lock when a limit has been created for a limit type . This limit can also be created automatically.
You can lock and unlock each limit individually. You can also use a report to lock and unlock multiple limit types simultaneously according to their characteristic values.
You use this procedure to set or remove the lock.
1. Choose ...® Master Data ® Limits ® Edit.
2.
Select the limit
type for which you want to lock or unlock the limit. Then choose
Change
Limits.
3.
Position your
cursor on any line of this characteristic combination, and choose
Lock/Unlock.
...
1. Choose ...® Master Data ® Limits ® Lock/Unlock. The system displays the screen Lock/Unlock Limits According to Limit Characteristics.
2.
The default limit
characteristic is the business partner. If you want to add other limit
characteristics as lock criteria choose New Field Selection. On the
left side of the screen the system displays an overview of all limit
characteristics. Select the limit characteristics you require and add them by
choosing
Copy selected. By choosing
Delete
Selections you can in the same way delete any limit characteristics that
have already been selected.
3.
By choosing
Lock you can lock the limits referred
to by the combination of all the limit characteristics you specified.
Similarly,
Unlock unlocks the limits.
If you set the
lock, the system shows this in the header row of the locked limit by inserting
the symbol
. If you choose this symbol, the
system displays the following dialog box:
Lock set by user XY, date: dd.mm.yyyy
In the single
transaction check, the system displays a message saying that the limit is
locked. Setting a lock does not effect how (
)
of an exceeded limits are displayed.

Lock entries on the database (technical locks) are not to be confused with the lock flags mentioned above (business locks).
