SAP ABAP Program LWTY16F0S (DOCUMENT_HEADER_FILL) is using

• Class (2)
• Data Element (3)
• Table/Structure Field (28)
• Function Module (3)
• Interface (1)
• Message Class (1)
• Message Number (1)
• Class Method (2)
• Table (5)

#	Object Type	Object Name	Object Description	Note
1	Function Module	BAPI_COMPANYCODE_GET_PERIOD	For Company Code: Posting Date -> Period, Fiscal Year
2	Function Module	OWN_LOGICAL_SYSTEM_GET	Specify Name of Current Logged-on System (client in R/3 System)
3	Function Module	WTY16_AWKEY_BUILD	Umschlüsselung Antragsnummer/Version in AWKEY