Dynamic Date Trigger Variables from Process Trigger

Don't use trigger variables, but rather just calculate the variables inside the flow based on system date, e.g. using functions like today() or todayDME(), etc.

Thanks. The reason I am using trigger variables is because sometimes users might want to run it manually for a week aside from the scheduled daily run. 

That's different than what you originally said you wanted to do and John's solution met that requirement. If you want users to enter dates, then give them access to the trigger form and have them enter the dates there.

Sorry new to Process Flows. Is there no way users can do both with the same process flow?

Scenario: This will be scheduled to run everyday with today's date. It does its thing without any user input which is what we want 90% of the time. But once in a while users will want to run the same process with different date parameters with user input. Is it not possible?

 

Yes, but you have to give users a place to trigger the flow and enter the dates. The trigger form (or a copy of it) is your best option. If you're still using Lawson then you can create a version of the WFWK.1 form for this or if you're only running Landmark applications (CSF, GHR) then you can use Configuration Console to create a trigger form.

If you're going to give the people doing this access to the process trigger form, you can do it with 3 variables. The two date variables you have, which I would probably update to indicate they're for a manual run, and a third variable to indicate if this is for a manual run. If the 3rd variable says it isn't manual, your flow calculates the dates, if it is manual, it uses the dates from the trigger.