When configuring the IPC event in the main process, ensure that the IPC process is being started using the credentials of the originator. This should then set the originator of the child process to the originator and therefore set the ProcessOriginatorManager.

Alternatively you can create a data field (string) on the child process. Then configure the IPC event to pass the ProcessOriginatorManager value to the data field of the child process. Then use the data field in your destination rule.

We are facing the same problem but with the EMAIL of the ProcessOriginatorManage. 

We want to create a mail event and assign the mail for the ProcessOriginatorManager and we are not able to do it since we are getting build error.

Can anyone suggest a solution ??

Thanks