SAP ABAP Message Class MK (Mass Handling in the Material Master) is used by

• Class (13)
• Function Module (8)
• Program (22)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_MASS_MAINTAIN_CHAR Method: DISPLAY_STATUS_MESSAGE	Mass Maintenance ALV	MGW	APPL	SAP_APPL
2	Class	CL_MASS_MAINTAIN_CHAR Method: ON_ALV_ADDED_FUNCTION	Mass Maintenance ALV	MGW	APPL	SAP_APPL
3	Class	CL_MASS_MAINTAIN_MEAN Method: DISPLAY_MAINT_ALV_PAI	Mass Maintenance ALV	MGW	APPL	SAP_APPL
4	Class	CL_MASS_MAINTAIN_MEAN Method: DISPLAY_STATUS_MESSAGE	Mass Maintenance ALV	MGW	APPL	SAP_APPL
5	Class	CL_MASS_MAINTAIN_MEAN Method: DISPLAY_CHECK_STATUS_MESSAGE	Mass Maintenance ALV	MGW	APPL	SAP_APPL
6	Class	CL_MASS_MAINTAIN_MEAN Method: ON_ALV_ADDED_FUNCTION	Mass Maintenance ALV	MGW	APPL	SAP_APPL
7	Class	CL_MASS_SAVE_ARTCHAR_PARALLEL Method: ADD_RFC_ERROR_MSG	Saving article informational characteristisc in parallel	MGW	APPL	SAP_APPL
8	Class	CL_MASS_SAVE_ARTCHAR_PARALLEL Method: CHECK_INPUT_DATA	Saving article informational characteristisc in parallel	MGW	APPL	SAP_APPL
9	Class	CL_MASS_SAVE_ARTICLE_PARALLEL Method: CHECK_INPUT_DATA	Class for saving articles with parallelization	MGA	APPL	SAP_APPL
10	Class	CL_MASS_SAVE_ARTICLE_PARALLEL	Class for saving articles with parallelization	MGA	APPL	SAP_APPL
11	Class	CL_MDG_BS_MAT_API Method: MAP_MESSAGES	Sydney Material API Layer	MDG_BS_MAT_API	MDG_APPL	MDG_APPL
12	Class	CX_MASS_CHARVAL	Exception Handling	MGW	APPL	SAP_APPL
13	Class	CX_MASS_CHARVAL_INTERNAL_ERROR	Exception handling	MGW	APPL	SAP_APPL