On BN16.1 there is a field called "From Date".

This filed has an option that says custom calculation. however, how do I setup a custom calculation to be used?

Anyone know?

Although I know next to nothing about how the benefits are set up via BN16.1, I took a quick look at it and can make an educated guess.

I entered some info, enough to get down to the From Date field, and hit F1. The field information says that you can select from a variety of dates, but if you leave the From Date field blank, it will default to Adjusted Hire Date.

Then the help text mentions User Exits. Hmmm. If leaving the field blank makes it default to something, then filling it in with an "X" makes it not default. So they are expecting you to create a User Exit program in order to process a custom date calculation.

The resource for User Exits is the Application Development Workbench (ADW) Standards Manual. Check it out. If you are still puzzled, come back to LawsonTalk and ask more questions.

(In another topic thread, I posted a nice diagram showing how User Exits work in 8.x applications. You might want to look at it. It's in LawsonTalk->Technical->BCI, Processflow and Addins->Any Books On Using Javascript In Design Studio?.)