Notifications
Announcements
In a Condition block, how do I test a variable to see if is an empty string? The authoring environment shows an error if I leave the value empty.
Hi @mscherotter ,
The user cannot send an empty value on chat. If the user sent " " (space + enter), the system show this message:
"Could you tell me that using text? Currently, I do not process other kinds of inputs."
So, you don't need to validate empty or null variables on the chat.
@mscherotter, are you trying to handle a return variable from a flow and do a condition in PVA based on that? I had the same issue and I had to add some logic in the flow to set the value of the variable to "NotFound" and then pass that back into the PVA so that the condition had something to select. Yes i know, workaround to fix a simple feature gap but you know... Let's be agile!
Thanks for reporting it guys, we're considering and investigating on this feature request now.
-Jeff [MSFT]
Under review
Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.
In our never-ending quest to improve we are simplifying the forum hierarchy…
We are honored to recognize Ajay Kumar Gannamaneni as our Community Spotlight for December…
These are the community rock stars!
Stay up to date on forum activity by subscribing.
Michael E. Gernaey 270 Super User 2025 Season 2
Romain The Low-Code... 181 Super User 2025 Season 2
S-Venkadesh 93 Moderator
