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Support Article

Post upgrade, Page-Set-Message does not set messages on Harness



Page-Set-Messages does not set messages on harness after Pega 7.1.8 upgrade.

Error Messages

Not Applicable

Steps to Reproduce

1. Create a Harness. Embed a section in the harness.
2. Create an Activity to:

  • Use Page-Set-Message inbuilt function to set messages on the Primary page for that section.
  • Use Show-Harness inbuilt function to display harness.

Root Cause

The error messages are set correctly but an additional call to pzGetTrackerChanges wipes out the error tables.


Configure pzKeepMessages as true in the getTrackerChanges API. This local-change needs to be introduced in UserWorkForm.


     @protected Will send ajax request to the server when ever there is no ajax request to is in progress. This request will get all the changes from the tracker and it will evaluate client conditions.
     @return $void$
    getTrackerChanges: function() {
        if (pega.u.d.isAjaxInProgress()) {
        var strUrlSF = SafeURL_createFromURL(pega.u.d.url);
        strUrlSF.put("pyActivity", "pzGetTrackerChanges");
        pega.u.d.asyncRequest('POST', strUrlSF);


Published October 5, 2015 - Updated October 8, 2020

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