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Support Article

Activity is not triggering on button as expected

SA-20830

Summary



User has a harness, from where one launches a modal dialog.
From the modal, user clicks a button to run an activity, however the activity is not triggered as expected. Activity does get triggered on the button only for the first time after log in.

User must log off and log back in to run that activity again.


Error Messages



Log message shows "Error: posted transaction id 'XXXXX' for frame 'ABC' does not match record 'YYYYY'".


Steps to Reproduce

  1. Configure a harness with a button to launch a modal window.
  2. Configure button on modal window to run activity.


Root Cause



An issue in the custom application code or rules. The specific design of the user to make a commit which changes the transaction id on the server.

But, that was not returned back, for it to use the new transaction Id going forward.

Hence, the log contained the transaction mismatch id error which did not allow any further processing, also the activity did not execute.


Resolution



Perform the following local-change: 

Essentially, once a commit is made, user must get the new transaction Id that the server returned.

In PRPC 6.2 SP2, the pxClientExchange parameter is not available to pass the transaction Id back to the client.

So to get the new transaction Id:

1. Create a new non-autogenerated section with the script below.
This enables the URL object to return the transaction id that the server created, back to the user through its response.

<script>
pega.u.d.url = '<pega:url ><pega:option name="long"/></pega:url>';
</script>

2. Include the above section in the existing modal dialog section.

Published June 2, 2016 - Updated October 8, 2020

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