SAP ABAP Program LKKRFF01 (Routines: Filling Routines and API) is using

• Table/Structure Field (603)
• Function Module (16)
• Message Number (2)
• Table (19)

#	Object Type	Object Name	Object Description	Note
1	Table	AFKO	Order Header Data PP Orders
2	Table	AFPO	Order item
3	Table	API_CHAR	API Interface for Characteristics
4	Table	API_VALUE	API Interface for Characteristic Value
5	Table	API_VAL_I	Assigning and Deleting Characteristic Values
6	Table	AUFK	Order master data
7	Table	BIAUSP	Classification: Batch Input
8	Table	CABN	Characteristic
9	Table	CKML_S_PROCESS	Procurement process
10	Table	CLTABLE	Transfer Object to Value Assignment for Object Characts
11	Table	KKRAMERK	General Criteria Fields for Summarization Classes
12	Table	KKRMKOR	Reference Characteristics (Orders)
13	Table	KKRMKPR	Reference characteristics (projects)
14	Table	KKROBID	Object Identification (CO Classification)
15	Table	KSSK	Allocation Table: Object to Class
16	Table	MARA	General Material Data
17	Table	MARC	Plant Data for Material
18	Table	PROJ	Project definition
19	Table	PRPS	WBS (Work Breakdown Structure) Element Master Data