Discussion1Replies85Views natan Member since 2012 32 posts PEGA Posted: 4 years agoLast activity: 4 years 10 months ago Closed Bad class def error in phone call member flowWe are getting the Bad class def error exception while running the phone call member flow.**Moderation Team has archived post**This post has been archived for educational purposes. Contents and links will no longer be updated. If you have the same/similar question, please write a new post. Low-Code App Development Upgrades ×Close popoverFacebookTwitterLinkedinEmail Copy Link Copied! Moderation Team has archived post This thread is closed to future replies. Content and links will no longer be updated. If you have the same/similar Discussion, please write a new Discussion. Posted: 4 years agonatan PEGA replied to natanTo overcome this exception, modify the InteractionsByContactID activity by changing the when from "@(Pega-RULES:Utilities).PropertyHasValue(tools, "NetPromoterScore")" to "@(Pega-RULES:Default).PropertyExists("NetPromoterScore")"