Question1Replies35Views×Close popoverRyouei Ding (dingl) PEGA Sr. System Architect Pegasystems Inc. JP View Profile dingl Member since 2019 7 posts PEGA Posted: February 13, 2020Last activity: February 20, 2020Posted: 13 Feb 2020 1:32 ESTLast activity: 20 Feb 2020 0:03 EST Client-side Ajax check is not triggered for a required custom controlA field of custom control is added into a section and is set as Required.Unlike a standard control set as Required, the "Value cannot be blank" error message is not shown bellow the field when the field is left blank and focus gets out of the field. We know if we add a Validate rule, the required message can be dispalyed on the Harness's error page, which, nevertheless, is not our required hehavior. Pega Platform 8.3.1 Low-Code App Development Dev/Designer Studio Senior System Architect ×Close popoverFacebookTwitterLinkedinEmail Copy Link Copied! Posted: 10 months agoPosted: 20 Feb 2020 0:03 EST×Close popoverRyouei Ding (dingl) PEGA Sr. System Architect Pegasystems Inc. JP View Profiledingl PEGA replied to dinglCan anybody help to answer this question? Thanks.