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	Program	LMASS_PARALL_CUSTO01	Include LMASS_PARALL_CUSTO01	MGA	APPL	SAP_APPL
2	Program	LMGMUF10	FORM Routines for Mass Handling for MGMU	MGA	APPL	SAP_APPL
3	Program	LMGMUF20	Special FORM Routines for Retail in MGMU	MGA	APPL	SAP_APPL
4	Program	LMGUVF01	Include LMGUVF01	MGW	APPL	SAP_APPL
5	Program	LMGWLF4E	MARD_REF_UPD_NEW_MARD	MGW	APPL	SAP_APPL
6	Program	LMGWLF4F	MPOP_REF_UPD_NEW_MPOP	MGW	APPL	SAP_APPL
7	Program	LMGWLF4H	MARD_REF_UPD	MGW	APPL	SAP_APPL
8	Program	LMGWLF4K	MPOP_REF_UPD	MGW	APPL	SAP_APPL
9	Program	LMGWLF4N	MFHM_REF_UPD	MGW	APPL	SAP_APPL
10	Program	LMGWLF4Q	MPGD_REF_UPD	MGW	APPL	SAP_APPL
11	Program	LMGWLF4T	MARC_REF_UPD_OLD	MGW	APPL	SAP_APPL
12	Program	LMGWLF4V	MARC_REF_UPD	MGW	APPL	SAP_APPL
13	Program	LMGWLF4Y	MBEW_REF_UPD_OLD	MGW	APPL	SAP_APPL
14	Program	LMGWLF4Z	MBEW_REF_UPD	MGW	APPL	SAP_APPL
15	Program	LMGWLF65	MLGT_REF_UPD_FUTURE	MGW	APPL	SAP_APPL
16	Program	RWMASS_MAINTAIN_CHARVAL	Mass Maintenance for Informative Characteristic Values	MGW	APPL	SAP_APPL
17	Program	RWMASS_MAINTAIN_CHARVAL_INI	initialization	MGW	APPL	SAP_APPL
18	Program	RWMASS_MAINTAIN_CHARVAL_P01	Local classes of RWMASS_MAINTAIN_MEAN: selection screen (IMPL)	MGW	APPL	SAP_APPL
19	Program	RWMASS_MAINTAIN_CHARVAL_P02	Include RWMASS_MAINTAIN_CHARVAL_P02	MGW	APPL	SAP_APPL
20	Program	RWMASS_MAINTAIN_MEAN_INI	Include RWMASS_MAINTAIN_MEAN_INI	MGW	APPL	SAP_APPL
21	Program	RWMASS_MAINTAIN_MEAN_P01	Local classes of RWMASS_MAINTAIN_MEAN: selection screen (IMPL)	MGW	APPL	SAP_APPL
22	Program	RWMASS_MAINTAIN_MEAN_P02	Local classes of RWMASS_MAINTAIN_MEAN: maintenance ALV (IMPL)	MGW	APPL	SAP_APPL