type

The type of parameter that you want to create.

SecureString isn't currently supported for CloudFormation templates.

Items in a StringList must be separated by a comma (,). You can't use other punctuation or special character to escape items in the list. If you have a parameter value that requires a comma, then use the String data type.

Specifying a parameter type isn't required when updating a parameter. You must specify a parameter type when creating a parameter.