Example: Period-Based Encumbrance Tracking 
The following scenario illustrates by means of a purchase requisition, which documents are generated within the framework of period-based encumbrance tracking.
The transactions in chronological order:
11.01.2000: Creating a purchase requisition in the amount of 100.-
12.02.2000: Changing the purchase requisition to 150.- (increase by 50.-)
12.31.2000: Commitments carryforward from fiscal year 2000 to fiscal year 2001
02.15.2001: Change in account assignment from X to Y for purchase requisition
03.03.2001: Reduction of purchase requisition by 10.- through purchase order
Date |
Period / Fiscal year |
Open items |
Amount type |
Account assignment |
11.01.2000 |
11/2000 |
-100 |
Original (PReq) |
X |
12.02.2000 |
12/2000 |
-50 |
Change |
X |
12.31.2000 |
13/2000 |
+150 |
Carryforward previous year |
X |
01.01.2001 |
01/2000 |
-150 |
Carryforward following year |
X |
02.15.2001 |
02/2001 |
+150 |
Reassignment (retirement) |
X |
02.15.2001 |
02/2001 |
-150 |
Reassignment (aquisition) |
Y |
03.03.2001 |
03/2001 |
+10 |
Reduction |
Y |
03.03.2001 |
03/2001 |
-10 |
Original (purchase order) |
Y |
( )