Enumerations are used to restrict the values of a string property to a limited set of valid values.
Enumeration values represent the set of limited values and are defined in transaction /PACG/ECM_ENUMV in field Enumeration ID.
Please refer to the below example where 3 enumeration values: assignment, conversation and meeting are assigned to Enumeration type Activity_type:
Learn more about External Activity Types: External Activity Types and Activity Subtypes
Background setup requirements for enumeration value:
Send values created in SAP to FSM in /PACG/ECM_TRIG_ENUM
Make sure the distribution model in BD64 includes Enumeration message type.
Make sure that outbound parameters in WE20 in partner profile include /PACG/ECM_ENUMERATION Outbound parameters.
Make sure that the ERP Object ID Enumeration type is existing for a specific company in /PACG/ECM_NOAS - No Object Assignment: