I'm passing a small array of process IDs into a Send Message Event, wanting

Where I have processes that do this I have the send message event in a sub process that is invoked for each instance in the array. I have recently seen this in the case management app recently released so assume it's best practice.

As for logging message events I have created a simple table in SQL server and write down before I send the message event and then update the table on receipt. Any incomplete records are then exceptions - you could relaunch from the table then if you needed to.

Where I have processes that do this I have the send message event in a sub process that is invoked for each instance in the array. I have recently seen this in the case management app recently released so assume it's best practice.

As for logging message events I have created a simple table in SQL server and write down before I send the message event and then update the table on receipt. Any incomplete records are then exceptions - you could relaunch from the table then if you needed to.