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REST service fails with error after application upgrade



REST service fails with error after application upgrade.

Error Messages

MSG][REST service[gettenantsformsp814c00b4182cd6c8a352f23143bba28c] failed:Outbound data mapping Outbound data mapping failed<CR> at<CR> at<CR> at<CR> at<CR> at<CR> at<CR> ... 64 more<CR>

Caused by: Property theTenantWrapper.PACshortcutPageGroup must be of a page or list mode for JSON mapping<CR> at com.pega.pegarules.integration.engine.internal.JSONMappingUtils.getOutboundJSONValue(<CR> ... 67 more<CR>]

Steps to Reproduce

  1. Create a REST service and include a page group property
  2. Map the response to the page group property
  3. Select the 'Use Fast Processing' feature
  4. Run the flow

Root Cause

In Pega 7.4, Fast Processing does not support page groups, value groups, and Java objects.


Perform the following steps:
  • Ensure to match the JSON property names and the clipboard property names
  • Ensure to create the JSON tree structure such that it is similar to the clipboard tree structure 
  • Map the scalar arrays in JSON to the clipboard as page lists
  • Map the multi-dimensional arrays into page lists with the same embedded property names

For more information, refer to the below article:

Published July 30, 2020 - Updated December 2, 2021

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