
Example: Changing the Existence Interval of the Funds Center
The following scenario explains the conversion process to year-dependent master data. It also explains the functional adaptation of the existence interval from funds centers to meet your organizational requirements:
You have been using the R/3 System since 1990, and a single valid funds center hierarchy (non-year-dependent funds centers). You are planning to prepare the system conversion to year-dependent funds centers in 1999. Your objective is to work with the year-dependent funds centers from the year 2000.
You upgraded to 4.01A in 1999. From Release 4.01A, you can work with year-dependent funds centers.
When you upgraded to 4.01A, your previous funds center hierarchy was automatically transferred, and the new

The fiscal year "0000" stands for master data processing, which is not dependent on the year.
You start the IMG activity Activate Year-Dependent Master Data in the Customizing for Public Body Funds Management. After successful validation of your transaction data, funds centers can now be processed year-dependently.
For more information on the RFFMMDAC activation program, see the IMG documentation in the section on Year-Dependent Master Data.
You would now like to update your funds centers. The funds center S1, no longer current from the year 2000, should no longer appear. You can solve this by changing the existence interval of the funds center concerned to 1990-1999.
You call up the function

Before saving the change the system checks if hierarchy variant entries, FM area/fiscal year assignments or postings exist for the period to be deleted from 2000 to 9999. If it finds this kind of entry, then you cannot change the existence interval.
For further information on maintaining commitment items, see
Changing the existence interval of a funds center as part of the conversion to year-dependent funds centers