Question8Replies385Views DanielA0342 Member since 2017 2 posts KPMG Posted: 2 years agoLast activity: 2 years 4 months ago Closed Pega academy errorHello,Im trying to do the Exercise: Automatically updating the total cost of benefitsBut when i try to save the expression for the Total Benefit Cost I have this error:***Updated by moderator: Lochan to move post from PSC to Pega Academy*** Pega Academy ×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 Question, please write a new Question. Posted: 2 years agoDanielA0342 KPMG replied to DanielA0342 Posted: 2 years agoSudhakarReddy PEGA replied to DanielA0342Hi, Please check the property EmployeeCost is present in TGB-HRApps-DATA-HRPlan class ?. Showing property undefined. Posted: 2 years agoMansoorK9168 CGI Group Inc replied to DanielA0342Hi, I am also facing the same issues. Can you please share how to resolve this error? Posted: 2 years agoAsif Hasan PEGA replied to DanielA0342Hi Daniel, Thanks for posting on PSC. Just to confirm, open "App Explorer" from right side pane. Under TGB-HRApps-Data-HRPlan class, verify that you have "EmployeeCost" property defined. If not, please create one. This could be possible, in case you have skipped the previous exercises. Hope it rectifies your use-case, kindly notify if it does. Regards, Asif Posted: 2 years agoDanielA0342 KPMG replied to DanielA0342The property EmployeeCost is not defined, but it is external maped: Posted: 2 years agoYiXiangO Accenture replied to DanielA0342Hi, I am having the same issues. May I know what is the resolution? Posted: 2 years agoBenjaminH Labb Consulting replied to DanielA0342The property must exist (in your case, be created). The External Mapping tab on a Class rule allows you to map an existing property to a column with a different name on the associated database table. Solution is to create the EmployeeCost property, as Asif suggested. Posted: 2 years agoAmandaP9 Ruletek LLC replied to DanielA0342Hello, I am having this issue too. The EmployeeCost property is not defined, and if I try to create it I get an error "No unlocked RuleSets/Versions found that are valid for this record."