Question1Replies261Views×Close popoverWitthaya Phonsawat (WitthayaP) MFEC MFEC TH View Profile WitthayaP Member since 2016 3 posts MFEC Posted: July 12, 2017Last activity: July 12, 2017Posted: 12 Jul 2017 1:05 EDTLast activity: 12 Jul 2017 1:47 EDT Closed I want to validate before Harness pop-up.When the button click. I want to validate something before Harness pop-up.This action cannot use tab "Validation" in "Flow Action".How to the validate.Thank you.PS. Pega version 7.2 Pega Customer Service ×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: 3 years agoPosted: 12 Jul 2017 1:47 EDT×Close popoverFaizan Fayaz Bhat (FaizanFayaz) PEGA Technical Solutions Engineer Pegasystems Inc. IN View ProfileFaizanFayaz PEGA replied to WitthayaPHi, You can use validation (methods > obj-validate, page validate or property validate ) in an activity to perform your validation. This activity can be called before the launch harness or inside the launch harness under activity field.