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Support Article

Email channels fail to process emails post upgrading



Email channels created in Pega 7.4 and earlier versions fail to process emails post upgrading to Pega 8.x. 

Error Messages

Unable to load data page D_pyEntityClassMapping. Required Belparameters : TAClassName. cannot be blank.

Steps to Reproduce

Create an interaction through an inbound email.

Root Cause

A defect in Pegasystems’ code or rules. The pyClassName property is not present for the email channels which are created in Pega 7.4 and earlier versions.


This issue is addressed in the Pega 8.3.2 patch release.

Published July 23, 2020 - Updated December 2, 2021

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