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Damian Blackley 18Damian Blackley 18 

I can't get isnull in flow to work as expected

User-added image
I have a string collection (newCountries) that is being populated by a duallistbox flow screen element, and I am previously setting it to equal an empty string collection object.
The currentCountriesForThisRegion variable is a simple string.

As far as I can tell, in the above example, both are null, and the flow has said both criteria have been matched, but it is not executing the outcome - what am i missing?  Any and all ideas/workarounds much appreciated!  
ShirishaShirisha (Salesforce Developers) 
Hi Damian,

Greetings!

Have you created an action for the conditions met logic.You need to specify the action,if the conditions met as well as the conditions doesn't met.

Please re-check your flow actions again and make changes accordingly.

Kindly mark it as best answer if it helps so that it can help others in the future.

Warm Regards,
Shirisha Pathuri