ipc/evt_os_key_top SAP Parameter attribute -

ipc/evt_os_key_top is a SAP Parameter attribute which is used to control information. This is available within R/3 SAP systems depending on the version and release level.

Below is the standard documentation available and a few details of the attributes values .

ipc/evt_os_key_top profile paramerter attributes

Parameter Name: ipc/evt_os_key_top
Description:
Default Value: 3999999
Parameter Type ( See IF_PARAMETER_TYPES): Integer(INT)
Restriction Values:
Parameter Unit:
Parameter Group: IPC
CSN Component: BC-CST-LL
System-Wide parameter: No
Dynamic Parameter: No
Vector Parameter: No
Has Sub-Parameters: No
Check Function Exists: No

Parameter documentation

An SAP instance uses operating system events from a defined range. This range starts with a number, such as 3000000 or 4000000. An event has the format X<(><<)>NN><(><<)>yyyy>, where NN is the instance number. You can use this parameter to define the number at which the range ends.

See SAP Parameter Documentation for full SAP documentation for this profile parameter.