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Support Article

Flow in a modal dialog action does not work



Post upgrade to Pega Platform 8.3, the Flow in a modal dialog action does not work. However, the same functionality works with the Launch local action.

Error Messages

pzpega_ui_harness_deferred_before_14195107074!!.js:447 Uncaught TypeError: Cannot set property 'value' of null
    at pega.ui.Doc.submitWrapper (pzpega_ui_harness_deferred_before_14195107074!!.js:447)
    at pega.ui.Doc.submit (pzpega_ui_harness_deferred_before_14195107074!!.js:447)
    at doFormSubmit

Steps to Reproduce

  1. Launch the Robot Manager (RM) portal.
  2. On click of a button in the RM portal, launch a flow in a modal dialog.
  3. Click the Submit button.

Root Cause

The flowinModalDialog created another thread, due to which the current thread is not submitted. However, when the Launch local action is used, the local action is in the same context and the modal dialog is submitted accordingly.


Here’s the explanation for the reported behavior:

As a local-change, use the Launch local action instead of flowinModalDialog.
Suggest Edit

Published January 10, 2020 - Updated December 2, 2021

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