VERIFIED SOLUTION i
Product Feature: Dialog Admin
While creating and verifying a 'Customer Domain' in 'Dialog Admin', the Message 'The field name 'MessageName' is an expression function name' is observed in Portrait Dialogue v220.127.116.116.
This message has no impact on functioning of Portrait Dialogue. It has been identified as defect in Portrait Dialogue v18.104.22.1686 due to conflict of a column name 'MessageName' in 'Message' Table and an Expression Function name.
ResolutionUPDATED: July 27, 2018
This has been changed in 'Hotfix 2' for Portrait Dialogue v22.214.171.1246.