Question3Replies1646Views NagarajP0101 Member since 2017 54 posts ING Belgium SA NV Posted: 2 years agoLast activity: 1 year 11 months ago Closed Solved Error "AsyncAppender-ALERT-ASYNCAES ERROR Exception in SOAPAppenderPega.sendEvent()" Post 7.3.1 UpgradeHello,We could see more below entries in the log post pega version migration from 7.1.9 to pega 7.3.1AsyncAppender-ALERT-ASYNCAES ERROR Exception in SOAPAppenderPega.sendEvent()AsyncAppender-ALERT-ASYNCAES ERROR Msg: Transport error: 503 Error: Service UnavailableAsyncAppender-ALERT-ASYNCAES ERROR Cause: nullI referred the post https://pdn.pega.com/support-articles/aes-repeatedly-shows-error-message and found that this issue is been fixed by DSS change.Pega-Engine.properties/com.pega.pegarules.bootstrap.codeset.version.pegaaes/defaultand specify the value 07-20-01.We created this DSS and restarted the server. But this issue still exists. Kindly advise what should be the value of PEGA 7.3.1 version ?Please note that we are using PEGA AES version 7.30 Low-Code App Development Installation and Deployment 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 Question, please write a new Question. Posted: 2 years agoDHEER_GCS PEGA replied to NagarajP0101You could run this SQL Select pzcodesetversion from pr_engineclasses where pzcodeset='pegaaes' to come up with the value. Accepted Solution Posted: 2 years agoNagarajP0101 ING Belgium SA NV replied to NagarajP0101This issue is been resolved once after bringing AES server up. Posted: 1 year agoSurendharReddy HCL B.v replied to NagarajP0101Can you please let us know if this has caused system crash or just logs overloaded? we are facing similar issue.