Post upgrading from v7.21 to 7.3 to a new infrastructure (and a new app url), a case management feature making use of WorkLink correspondence fragment was found degraded. The direct link to work object (embedded in outgoing emails) pointed users to the old environment.
Verified below Dynamic-System-Setting is set with current application url.
The Data-Admin-System-Configuration object was found stale even after the processes responsible to populate it were rerun. A limitation identified in Pega 7.3, which causes the primary public url (pyPublicLinkURL) to remain stale, pointing to the old environment.
The issue was resolved after removing the stale object. Steps: