FP03DM: Updating custom messages in Application log of Submission to Collection Agency

Hi All,

I have been working on FP03DM transaction for Mass Activity:Submission of Collection Agencies. As per my client requirement, I need to update the Standard Application log with custom messages. Once User click on Log tab in FP03DM, then click on Application log button, he should be able to see the standard as well as custom messages.

Can anyone share the steps that needs to be followed for achieving this requirement.

Thanks in advance.

Vijay Singh