Creating a flow in Flow Designer with field values and tasks

[rdskn023ET]

Hi,

I am looking to get some assistance in Flow Designer when using a field value and completion of demand tasks to perform specific steps. Below is an example. Any assistance you can provide would be appreciated!

Field A has the values 1, 2 and 3. 

When Field A is selected with value 1, I need to create two specific demand tasks. Upon completion of those two demand tasks, I need to automatically set Field A to 2, which then creates two new specific demand tasks. The same will happen for Field A value 3. 

That part is easy when it is linear, but the complexity comes when we open up Field A to be selected in any order. Therefore, someone could select 2 in Field A first, which would create the two demand tasks. Once those two demand tasks gets closed out, it would set Field A to 3 and create two new demand tasks. I need to ensure that this functionality works in any order without duplicate demand tasks being created. So a user could select 3 in Field A, then 2 in Field A and then 3 in Field A again, but only have total of four demand tasks created, two for Field A's 2 value and two for Field A's 3 value. Then, at any point they could select Field A's 1 value and have those demand tasks created, again, without any duplication if they were to select a different value and go back and select 1 again. Therefore, regardless of the number of times they selected a different number from the field, there would only be a total of six demand tasks created in any scenario.

I hope this makes sense. Basically, the overall picture is to create a flow where a group of actions/tasks could be created in any order without duplicates based on a field's value and/or the completion of those tasks that were created. 

Thanks in advance for any assistance.