SAP ABAP Function Module SWW_EI_HEADER_READ (Read Header Data of Event Item) is using

• Data Element (1)
• Table/Structure Field (4)
• Function Module (2)
• Message Class (1)
• Message Number (2)
• Table (6)

#	Object Type	Object Name	Object Description	Note
1	Table	SWLLOGHIST	History of a Work Item
2	Table	SWWEI	Workflow Runtime: Work Items of Type E (Event Items)	SOURCE VALUE(EI_HEADER) LIKE SWWEI
3	Table	SWWEI	Workflow Runtime: Work Items of Type E (Event Items)
4	Table	SWWWIHEAD	Workflow Runtime: Header Table for All Work Item Types
5	Table	SWWWIHEAD	Workflow Runtime: Header Table for All Work Item Types	SOURCE VALUE(WI_ID) LIKE SWWWIHEAD-WI_ID
6	Table	SWWWIHEAD	Workflow Runtime: Header Table for All Work Item Types	SOURCE VALUE(WI_HEADER) LIKE SWWWIHEAD