SAP ABAP Message Class ACO (Error Messages for Package ACO) is used by

• Class (12)
• PINF (3)
• Program (1)

#	Object Type	Object Name	Object Description	Package	Structure Package	Software Component
1	Class	CL_ACO_SUBSTITUTES Method: REQUEST_OPT_ENQ	Substitute Collection	ACO	ABA	SAP_ABA
2	Class	CL_ACO_SUBSTITUTES Method: PROPAGATE_OPT_ENQ	Substitute Collection	ACO	ABA	SAP_ABA
3	Class	CL_ACO_USER_GROUP Method: ENQUEUE	Administration of User Groups	ACO	ABA	SAP_ABA
4	Class	CL_ACO_USER_GROUP Method: ENQUEUE_SHARED	Administration of User Groups	ACO	ABA	SAP_ABA
5	Class	CL_ACO_USER_GROUP Method: CHECK_SUPERIOR_LEVEL	Administration of User Groups	ACO	ABA	SAP_ABA
6	Class	CL_ACO_USER_GROUP Method: REMOVE_USER_GROUP_CHECK	Administration of User Groups	ACO	ABA	SAP_ABA
7	Class	CL_ACO_USER_GROUP Method: ADD_USER_CHECK	Administration of User Groups	ACO	ABA	SAP_ABA
8	Class	CL_ACO_USER_GROUP Method: ADD_USER_GROUP_CHECK	Administration of User Groups	ACO	ABA	SAP_ABA
9	Class	CL_ACO_USER_GROUP Method: SET_NAME	Administration of User Groups	ACO	ABA	SAP_ABA
10	Class	CL_ACO_USER_GROUP Method: DELETE_CHECK	Administration of User Groups	ACO	ABA	SAP_ABA
11	Class	CL_ACO_USER_GROUP Method: TOGGLE_EDIT_MODE	Administration of User Groups	ACO	ABA	SAP_ABA
12	Class	CL_DPR_API_USER_GROUP Method: RETRIEVE	API for Proj. Mgmt User Group	DEVELOPMENT_PROJECTS_API	PROJECT_PORTFOLIO_MANAGEMENT	CPRXRPM