I’m in the process of drafting the concept for a MultiCurrency module (see also Howto / Help subforum).
I’ve been looking into the possibilities with triggers. When an order/invoice etc is validated, I need to check if there was already MultiCurrency module data present for this order, and if yes, the user should receive a warning that he needs to check that data or ideally be redirected to the MultiCurrency page.
Is there anyway to do this in the trigger interface?
You can have a look at dolibarr wiki to know how triggers works.
However you can execute silent action but can’t change the page of redirection on a submit event.