User Status update on Sales Order Header

Hi all,

I need to update the "User Status" on sales order header when a sales order is saved. As user status reside in JEST, what available user exits are there to change/insert new user statuses? I don't believe the common exits like MV45AFZZ would do.

To clarify, to get to these user statuses, you go to the header of the sales order, select on the 'Status' tab, then click on the "Object Status" pushbutton.

Any help would be greatly appreciated in the form of points!

Thank you.

Liam