Invalid assignment expression. The left hand side of an assignment operator needs to be something that can be assigned to like a variable or a property.

Platform:

Source: All > Destination: Microsoft Office 365

Problem

Using the default PowerShell scripts migrating to Office 365/Exchange 2010/2013/2016, the following error is returned.

Invalid assignment expression. The left hand side of an assignment operator needs to be something that can be assigned to like a variable or a property

Solution

This error can occur due to code that no longer works correctly with newer versions of PowerShell. To manually correct the problem, edit the following line:

if ('[!user-type]' == 'Resource') {

To read:

if ('[!user-type]' -eq 'Resource') {