in Microflow actions, instead of the Enum value (in your case ‘ROW’) it should be ModuleName.EnumerationName.EnumerationValue.
E.g. in my example screenshot below my Enum value I want is ‘Technical_Approval___CaPa’ but to select it I have to type ModuleName.EnumerationName.EnumValueName.
TIP: after typing ModuleName. + first few letters of your Enum name press CTRL + SPACE to see your options.
You should fill out the whole path of your enum. So if Row is a value of an enumeration called yourenumname in the moduel yourmodulename it look something like:
[CountryCode = yourmodulename.yourenumname.Row]