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Can't publish a workflow after installing a Rollup Update? Read on...

If you have installed the Microsoft CRM Update Rollup 1 or Update Rollup 2, you might experience an error where you cannot publish a workflow rule anymore. According to Microsoft this might happen if you modified the web.config file in your deployment:

If you have modified the Microsoft CRM website web.config file, then you need to manually open the Microsoft CRM Web site web.config file in an editor like Notepad and add the following section to it in order to continue being able to publish workflows:

In the section <authorizedTypes>

…multiple lines here

<authorizedType Assembly="mscorlib, Version=, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.Globalization" TypeName="CultureInfo" Authorized="True"/>


Microsoft said they are looking at modifying the install notes to include this warning and/or revising the Update Rollup 2 installation files.